Tessloff Verlag, founded in 1956, is one of Germany’s leading non-fiction book publisher for children.
The knowledge brand WAS IST WAS, together with WAS IST WAS Junior and WAS IST WAS Kindergarten offers knowledge transfer in various media forms for different age groups: Books, quiz and puzzle books, the knowledge website www.wasistwas.de, DVDs and audio plays invite children to read, learn, listen and participate.
Since March 2020 the new series WAS IST WAS Naturwissenschaften easy! explains children vividly complex science topics. The series WAS IST WAS Erstes Lesen contains well-founded factual knowledge for first readers.
Besides WAS IST WAS has already been published in over 45 languages and more than 100 countries.
High-quality nonfiction special editions such as "A Journey through the Universe", the unusual brain book "Why grey cells are pink," or the climate book "Writing the Future instead of painting black" delve into current topics.
In 2018, Tessloff Verlag started to publish adventure stories for the first time. The series "Little Major Tom" about a little astronaut boy and his friends fascinates children aged 7 and up with books and audio plays. The new series "#Datendetektive" by Jaromir Konecny deals with the topics of artificial intelligence and robotics in an entertaining way.
In addition Tessloff offers a wide range of activity titles, including colouring, sticker and puzzle books for kindergarten and primary school children.
High quality board books for children from 0 to 36 months complete the publisher’s list.
With the audio pen BOOKii, children can explore books with eyes and ears. Simply tap on pictures or texts with the tip of the digital audio pen, original sounds will be heard, characters will start talking or texts will be read aloud.
Tessloff Verlag was awarded the German Publishing Prize in 2020.
Sea creatures and icebergs, storm surges and deep-sea trenches – the oceans are full of fascinating knowledge adventures! With this WAS IST WAS book, children aged 8 years and up explore the diversity of these water worlds. Marine biologists give a compact introduction to oceanography. Then it goes down with research divers to the underwater volcanoes. Exciting facts bring to life the time of the great sailing ships, when captains and sailors still believed in sea monsters. Clear texts, exciting interviews and stunning pictures make clear what is being done for the preservation of the oceans and what great challenges climate change poses to mankind. A fascinating topic, comprehensibly and vividly described!
Looking up at the starry sky and dreaming of adventures in distant galaxies – every child is immediately involved. But how were the stars formed? How far away is the Milky Way? And how do astronauts live on a space station? In this new first-reading book, factual topics relating to space are explained with short sentences, simple vocabulary and lots of photos in such a way that even first readers can explore their favourite topic easily. Only a small amount of text per page makes reading easier and many entertaining reading quizzes help to understand the text.
With the new series WAS IST WAS First Reading easy! learning to read is fun!
Vicki, Laurin, Lina and Theo are the #DataDetectives. The cheerful clique around the clever robot Babblebot experiences the possibilities and dangers of the digital world and fights smartly against cybercrime. Excitement and fun are guaranteed!
The first case for the #DataDetectives: When Lina comes new to the class with her robot, there is great excitement. A robot as a classmate? Sure, because Babblebot has artificial intelligence inside. He can talk and he loves doing it. But soon he is in great danger! And then there is Blackhack, the mysterious hacker who causes a lot of trouble with his attacks on the school computers...
In this unique non-fiction book brain researcher Prof. Dr. Michael Madeja explains together with the brain cells Purki and Pyra how the human brain works. They present the structure of the brain, show how the brain is constantly changing and why we can keep on learning. We get to know how optical illusions work and what are the benefits of brain training. The book also gives an update on current research for example on diseases like Alzheimer’s.
An amusing non-fiction book that not only gives young researchers an understanding of the biology of grey (or pink) cells!
By chance, the inquisitive student Nano meets the ingenious Dr. X and his inventive assistant Micro Minitec. In their laboratory, they proudly present Nano their downsizing machine. Fascinated, the boy marvels at the “Turbobeamer” and curiously presses the button on a remote control. Seconds later, Nano and the likewise shrunken rabbit Rappel are in a miniature submarine directly in the mouth of Dr. X’s assistant. An adventurous journey through the human body begins...
The series “Der kleine Medicus” was written by the well-known author and physician Prof. Dr. Dietrich Grönemeyer. Each volume offers exciting entertainment, peppered with well-founded expert knowledge about the inside of the human body.
What are clouds made of? Why is it raining? And who actually makes the weather forecast? Easily understandable texts and loving illustrations explain the interplay of sun, air and water. In numerous information boxes, the little weather researchers learn all sorts of surprising facts, such as that a cloud is as heavy as a large passenger plane. Lots of discovery flaps invite to explore weather phenomena such as the interior of a thundercloud or the structure of a snowflake. Exciting ideas to join in, for example how to build a small weather station, bring knowledge to life.
Climate concerns us all! But what is the climate actually? What makes the earth so lifefriendly and what do greenhouse gases have to do with it? The new WAS IST WAS volume describes climate factors, presents the history of the earth’s climate and is dedicated to the pressing questions of climate change and climate protection. What could the Earth’s climate future look like and what can each individual contribute to protecting the climate? An important topic, excitingly and vividly explained!
Crime has always existed - and the search for thieves and murderers is just as old. No sooner is a crime reported today than the investigators are already at the scene of the crime. There they secure traces, take fingerprints and photos. Hair or skin flakes that allow genetic analysis are particularly helpful. If the perpetrator is known, they will search for him. After his arrest he is interrogated and the investigators bring the case to a final conclusion. Today, cyber criminals are also being pursued on the Internet using the latest methods. And profilers find more and more possibilities to even predict crimes to a certain extent. This WAS IST WAS book follows the exciting work of crime investigators.
No book with seven seals: In an entertaining and descriptive way, readers learn what Einstein’s theory of relativity is all about. How did Einstein come to develop his theory? How did he and later researchers work on it? And where can we use Einstein’s insights in our everyday lives today? Almost without formulas, but with impressive graphics, a clear layout and exciting stories, everything about gravity is explained here With an introduction to classical physics!
Just reading was yesterday - this book takes the children on an unforgettable journey into space! After the rocket launch, the space explorers stop on the ISS, experiment with weightlessness, visit the moon and marvel at planets and stars. The travellers will also take a trip back in time: back to the Big Bang, the beginning of the universe. Exciting factual texts and elaborately designed book pages show the uniqueness and fascinating beauty of our universe. Small experiments and pictorial comparisons help to understand even complicated facts. The countdown has started - the spaceship is already waiting!
School might be boring sometimes... but not on Space Camp 1! Here Little Major Tom and his friends learn about space research, robotics and the wonders of nature.
What does “artificial intelligence” (AI) mean? Where is it found in our everyday life? And will humanoid robots ever be able to completely replace humans? After a look back into the past, when people dreamed of independent machines, the book shows the possibilities of Artificial Intelligence in Smart Technologies or Medical Sciences. Young readers also get an impression of the future and the dangers of these new technologies. Great photos, funny illustrations and exciting experiments offer additional knowledge and fun.
In latest volume 11 Little Major Tom, his friend Stella and robot cat Plutinchen rescue the young Chinese astronauts Ming and Hu and their robot panda Neng Neng from the damaged Space Camp 1. But soon they are all called to action: The holes in the outer shell of the space station are in hard-to-reach places and the children are asked to carry out repair work. Can the newly formed team master this task and successfully complete the spectacular and dangerous outdoor mission? Another galactic space adventure paired with a great deal of knowledge about the universe.
Breathe, eat, digest: It's incredible what the human body can do! Not only Roxy, the robot who accompanies the little readers through the book, is amazed. Together with him, first readers can explore their favourite subject and find out how their own body is working. They learn amazing things about seeing, smelling and tasting, explore how organs and nerve cells function and are introduced to healthy eating in a playful way. The large primer script and short text sections enable primary school children to acquire knowledge bit by bit. Quizzes after each chapter and at the end of the book provide additional entertainment.
Where are the seven seas? What is the difference between sea and ocean? Why is our earth called the blue planet? Together with Otto, the clever octopus, first readers explore the great waters. In this volume of the series WAS IST WAS Erstes Lesen you will learn everything about this exciting habitat and meet fascinating marine creatures such as whales, sharks and turtles. Beginners learn why the oceans and their inhabitants are so important for the climate. The large primer script and short text sections enable primary school children to acquire knowledge bit by bit. Quizzes after each chapter and at the end of the book provide additional entertainment.
Loud and quiet, warm and cold or wet and dry - the little blue elephant and his friend, the pink rabbit, discover the world of opposites. They enjoy a pleasantly warm day at the sea, build a snowman in the cold winter, have fun on the playground and fall into bed exhausted in the evening. Little explorers aged 18 months and over accompany the two popular characters of the WDR "Sendung mit dem Elefanten" on their adventures and learn a lot about contrasts.
What happens the first day of school? Which subjects are on the timetable? And what does a classroom look like? Many important questions of future school children are answered in this WAS IST WAS Junior book in a clear but playful and entertaining way. Informative texts and vivid illustrations provide exciting knowledge about everyday school life and make even more curious for the first day at school. The numerous discovery flaps provide little surprise effects, showing the contents of the pencil case, the different rooms in the school building or the adventures on excursions. An ideal preparation for the start of school!
Which flowers bloom in the springtime? When will the cherries be ripe? What makes the leaves so colorful? What do squirrels do in winter? The new WAS IST WAS Kindergarten series gives age-appropriate answers to kids’ questions and makes everything easy to understand. Beautiful illustrations and sturdy flaps make the books ideal for reading aloud. Funny search puzzles, easy experiments and great craft ideas all encourage the kids to join in.
The book “The Seasons” vividly teaches kids their first facts about the different times of the year, showing the most beautiful aspects of spring, summer, fall and winter.
Which type of shark actually swallowed a car? What creatures used to swim around in the oceans long, long ago? And what is a mastodon? WAS IST WAS Junior takes little dino fans from 4 years and up on an exciting journey back to the giants of primeval times. Large detailed illustrations, lots of discovery flaps and all kinds of activity elements all offer exciting knowledge for kids to discover in a practical and fun way. The series also includes many other books on favourite topics.
How often does my heart beat? Are my teeth made of bone? What can my skin do? Playfully and in child-friendly language, the new WAS IST WAS Junior book “My Body” explains to children aged 4 years and up how it all works: growth, digestion, our skin, our bones, our muscles, and much more.
Large detailed illustrations, lots of discovery flaps and all kinds of activity elements all offer exciting knowledge for kids to discover in a practical and fun way. The series also includes many other books on favourite topics.
Cats that smell like Popcorn? Self-inflating fish? Lizards that look like dragons? In alphabetical order, this exceptional wildlife book presents over 180 animals with amazing abilities. Great detail shots, solid knowledge about each animal, and funny anecdotes all make this book into a very special and colourful work of reference. A map of the world shows the habitats of all the animals featured.
In the Stone Age, ice ages alternated with warmer climate periods. As a result, the animal and plant world changed several times. The people of the Stone Age were amazingly successful at adapting to the constantly changing living conditions. They learned to make fire, to hunt, and to manufacture stone tools. Breakthrough inventions such as the wheel or even surgery all date from this period.
But how did Stone Age people manage to lift up huge boulders to make those megalithic barrows? And what about all those mysterious stone circles? The new WAS IST WAS book »Stone Age« takes us back to the tough and exciting life of our ancestors.
Dance is a language made up of movement and rhythm. It is understood all over the world and connects the most diverse cultures. The new WAS IST WAS book »Dance« is not just about ballet but about the entire world of dance – about its history, from Antiquity to the 20th century, about dances all around the world, such as ritual dances, samba or belly dancing, and dance as a sport – on the ice, in teams, or as ballroom dancing. This book is also dedicated to contemporary dance, as well as its pioneers such as modern dance, jazz dance, and all the dancing in musicals and films.
The whole world in one book! The WAS IST WAS Atlas contains over 80 high-quality physical and political maps which have been created especially to suit the needs of children and enabling them to easily understand the content. Continents and regions are all displayed in detail – for instance, in-depth information is provided on climate, culture, industry and economy. The consistent double-page structure – text on the right, map on the left – provides a clear layout for easy orientation. In addition to an introduction how to use an atlas, this atlas also contains information on cartography, global time differences, climatic zones, and also an extensive country lexicon.
How did people in the old days imagine the future? What does a futorologist’s work involve, and what will life be like in 2050? The world is changing ever faster due to scientific and technological progress. Soon we will be living in “houses that can think”, and we won’t need to buy everyday items any more – we’ll simply manufacture them on 3D printers. Even today, a lot of jobs are already being carried out by robots, while we humans are planning colonies on Mars. The new WAS IST WAS book “The Future” provides fascinating glimpses of an exciting new world!
The famous nonfiction series for children “WAS IST WAS” features over 60 books on exciting factual issues.
›Fit für die Schule. What you have to know!‹ provides explanations and tasks in all areas of math learning for Grades 1 to 4: Numbers, basic arithmetical operations, calculations using specified amounts, practical tasks, and geometry.
Lots of sample tasks are provided, repeating what each grade level needs to know. With a detailed solution section and a fold-out overview page.
Time to grab those crayons, take out the scissors, and start gluing! In this book of Craft Fun with Lilly the Elf, eight special craft kits create a magical elfin landscape with play figures, a mobile, and beautiful little boxes and coronets. My Elfin World also features exceptional coloring and activity booklets. Just the thing for little elves!
Enchanting, detailed colouring pages are waiting for little artists to colourfully decorate and embellish them. Children can add about 50 glittering stickers from each issue directly to the colouring book or use them to brighten up notebooks, lunch boxes or windows. Gorgeous fun with colouring and stickers for many favourite subjects.
A first book about jobs, with lovely illustrations and discovery flaps for the little ones. Young children can learn all about four exciting professions, fire fighter, zoo keeper, craftsman and farmer, and discover all kinds of new things under the large discovery flaps provided.
In the space station, Little Major Tom, his girlfriend Stella and Plutinchen the robot cat are all super excited! Their new spaceship ‘Space Racer’ has just been delivered. It’s especially fast and maneuverable, which makes it ideal for their exciting space adventures.
During their first test flight, they suddenly receive an urgent call from their friend Daniel. He is worried – the sun in his city is going dark at noon! The friends are at a loss what to do – and then decide to fly to Earth on a mission of exploration. Plutinchen has long suspected that this is a solar eclipse. But that’s not the only lesson they’re going to learn during the mission...
The two young astronauts and the robot cat are the protagonists in these galactic adventure stories. Whatever happens to them out in space or on their home planet – having to repair a solar sail, suddenly flying alone through space, or being surprised by a solar eclipse during a visit to Earth – they master every challenge together.
Three-quarters of the nearly 1.5 million known species of animals on Earth are insects. It’s fascinating what an incredible variety of these tiny creatures live all over the world. Whether in the mountains, in forests, on meadows or in deserts, insects can adapt to their environment through special camouflage, defense mechanisms and physical features. They can communicate with each other and some species, such as the dragonfly, have 30,000 individual eyes – giving them an all-round view!
But there has been a terrifying drop in the number of insects worldwide! Forest clearances and the use of pesticides and chemicals have reduced their numbers dramatically in recent years. WAS IST WAS Insects is an important work for children aged 8 years and up, teaching them how to place these tiny creatures in a bigger context.
Where does the water go after it leaves the bathtub? How does our washing machine actually wash? And what technological helpers are there in the kitchen? All over our homes we’re surrounded by technology that we generally take for granted. But how does it work? Exciting discovery flaps give us an insight into several mysteries here. We see how electricity and water are channeled into our house, how we access the Internet, and the kind of technology to be found inside a hair dryer. It’s hard to imagine that laundry once used to be washed very elaborately by hand, or that grandparents still watched television in black and white.
Easy-to-understand texts and detailed illustrations show children aged 4 and over how much technology a house actually contains. Lots of active elements and numerous discovery flaps provide amusing surprises, and invite kids to take part. Ideal for reading aloud – and also helps kids to discover things and read their first words by themselves.
Bright green apples, bright yellow chicks and dark-blue grapes all invite you to discover the world of colors! The index at the side of the book makes it easy for small children’s hands to leaf through the pages and find what they’re looking for. Gradually, the little ones learn to distinguish and name colors and objects. For curious discoverers and explorers aged 18 months and up.
Can you tell what type of tree it is from its shadow? Repair the roof and paint the tiles! Will Bello the dog find his bowl? Using everyday pictures and stories, Ella the Owl and her friends playfully encourage kids to learn their first letters and numbers from 1 to 9. Rhymes and clapped syllables awaken the feel for language, picture puzzles for differentiating and comparing improve kids’ concentration, and tracing and coloring exercises enhance the motor skills they need for learning to write later on. Turn your kids into wise owls – so that they look forward to school!
Little soccer fans aged 6 years and up will find everything important about the sport here: fun, tactics, and concentration.
Tricky soccer mazes to navigate through, first facts, clear assignment of teams, picture stories, and a keen eye for the right move all inspire kids to speculate, concentrate and find solutions. All the different block pages, plus direct access to the answers and solutions, make this highly varied puzzle book ideal for the home as well as for journeys!
Which plants grow in the forest? Where do hedgehogs find a safe hiding-place? And do trees also produce flowers? This book introduces kids to the forest as a habitat for animals and plants – and the BOOKii audio pen gives them a really lifelike, close-up experience of typical forest noises and animal sounds. Complete with an interactive search game, handicraft tips, and useful hints for young researchers.
The new book Bookii WAS IST WAS Junior "Discover the Body!" provides kids aged 4 and up with over 600 audios, informative texts and detailed illustrations about how the body works, and teaches them about all the important tasks of the individual organs.
Incredible records, exciting discovery flaps, and interactive games and puzzles all make learning a really fun experience.
Which animals live in the forest? What are ebb and flow? This WAS IST WAS Junior book gets to the bottom of the exciting secrets of nature. Natural panorama pictures show the most diverse habitats of animals and plants - from the mountains to the sea, on meadows and in forests, in the country and in the city. The discovery flaps hidden in the colourful pictures give surprising insights into the different habitats of the animals. Short, easy to understand texts and numerous suggestions for puzzles and experiments arouse curiosity and encourage the children to become active themselves. For young explorers aged 4 and up.
In the meadow there’s a loud buzzing sound. Hidden away between the blades of grass, the well-camouflaged grasshoppers are ready to jump, and colorful butterflies flit from flower to flower. What do butterflies eat? How do grasshoppers make music? And can silverfish actually swim? Children from age 4 and up learn all about the world of insects in this fascinating WAS IST WAS Junior book. Lots of discovery flaps and games invite them to explore more and more details!
A huge blue whale lifts its massive tail out of the water, nimble dolphins leap above the foaming waves, and a big fat sperm whale searches for its favorite food in the depths of the ocean.
The new series "WAS IST WAS - My First Reader" makes learning how to read really easy, with short texts and big lettering. Impressive photos and fascinating information boxes make kids curious, and get them really excited about different topics. Funny characters like Fini the Dolphin guide them through the book, ensuring fun and entertainment. At the end of each chapter, a reading quiz makes sure the kids have understood the text and ensures they remember it, too.
The books are designed for first-time readers who are just starting read their first texts on their own. Lots of exciting facts make these early readers delightful!
This ‘book about the book’ provides exciting information on one of humanity’s greatest cultural assets. From the emergence of writing more than 5,000 years ago and the invention of book printing to today’s e-book, this WAS IST WAS volume traces the book’s history – and also shows how it could continue in the future. Enhanced by numerous photos, illustrations and infographics, the volume vividly conveys the various different steps involved from idea to book. What is work like for an author? What happens in the graphic department, and how does the book end up in the shops? Exciting special pages give book fans aged 8 years and up lots of extra knowledge!
The high-quality map material, child-friendly explanatory texts, impressive photos and detailed graphics in this atlas all teach young kids about the countries of the world. With over 1500 audios, the BOOKii audio pen provides knowledge about regional characteristics, climate, culture, wildlife, politics, economy and history. There’s also a country dictionary, with important facts and all the world’s flags. With useful introduction how to read a map.
What does a stable look like? Who drives the tractor? And which animals live here?
With its lovely illustrations My First Index Book Farm invites the little ones to name and distinguish farm objects in a playful way. The index at the side of the book makes it easy for small hands to leaf through the pages and find what they are looking for. Made out of extra-thick cardboard it will be a sturdy companion for a long time.
In this adventure story, the three young space researchers Little Major Tom, his girlfriend Stella, and the robot cat Plutinchen all visit Mars. But while they’re calmly exploring the red planet, a sandstorm suddenly starts – and they only just manage to escape from it at the very last moment. Shortly afterwards their little spaceship, the “Space Racer”, nearly falls down the crater of a volcano! With lots of bravery and team spirit, the friends manage to master all these challenges, and continue with their galactic adventure. At the end of the book, as always, there is the logbook, containing basic facts to supplement and enhance the fantastic story. For readers aged 7 years and over.
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