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!

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. 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. 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.