First Big Book of How: How do polar bears keep warm? How do keys open locks? How to spacesuits work? The ultimate book of answers for kids who need to know HOW!

A compendious and stunningly illustrated fact-filled book for children who have endless questions about how the world works.

How do scientists see into space? How do polar bears keep warm? How do keys open locks? How do fireworks explode? Featuring more than 150 compelling questions about space, Earth, machines, buildings, animals, and the human body, this magnificent book by the author-and-illustrator team behind the bestselling First Big Book of Why provides answers for every inquisitive child. And these are answers you can trust, as they have all been thoroughly fact-checked and reviewed by subject experts, who are proudly profiled in the book.

By encouraging children to question how things are happening in the world around them First Big Book of How supports STEAM learning and nurtures curious minds. The warm and playful text is accompanied by stunning real-life photography as well as gorgeous original illustrations and helpful, friendly diagrams. This book is the ultimate gift for kids who need to know everything—and now!

Includes a contents page, glossary, index and source notes.

Sally Symes worked for many years as a designer of children’s books before turning her skills to writing them. Her collaborations with Nick Sharratt have won several awards, including The Educational Writers’ Award for The Gooey, Chewy, Rumble, Plop, and she is the author of the bestselling Britannica First Big Book of Why. She works from a shed in Sussex, UK, accompanied by her grumpy cat.

Saranne Taylor is a writer of children’s books, primarily on STEAM and other nonfiction topics. When she qualified as a teacher, she became passionate about inspiring school children and young readers. Since then, it has been her aim to excite children’s natural enthusiasm for learning by combining intriguing content with entertaining visuals. When she’s not writing, she loves hiking with her family and dog in the Italian countryside where she lives.

Kate Slater grew up on a beautiful farm in deepest Staffordshire, and studied illustration at Kingston University. Her children’s books include: Britannica First Big Book of Why, A is for Ant, The Birthday Crown, The Little Red Hen, Magpie’s Treasure, and Make Your Own Flying Machines.