• Age: 8 to 12
• Grade: 3 to 7
• Reading age: 8 to 12

Ever wonder what happens when you go to sleep at night? Discover all that's still going on in the world after dark, in this intriguing, fact-packed introduction to the science of night.

What happens when we go to sleep at night? Now young readers can find out, in this entertaining exploration of the science of night. Nocturnal animals are hunting for food. Plants are using math (!) to conserve their overnight energy. Celestial objects only visible after dark are shining brightly in the night sky. Even our own bodies and brains are still working to keep us healthy! Amazing as it is, the world doesn't stop just because we've closed our eyes.

Lisa Deresti Betik has created a fun, engaging and fact-packed introduction to the science of what happens in the world after dark. Children will be delighted to find the answers to questions such as: Why do we dream? How do bats use echolocation? What blooms in the moonlight? Why do stars twinkle? Thoroughly researched and vetted by several experts, this book covers multiple STEM topics, leading to tons of direct curriculum links in earth science, life science and physical science. The comprehensive, wide-ranging approach allows for loads of fun facts that will appeal to children. Josh Holinaty's stylish illustrations create a striking nighttime look with a limited, dark color palette. The text is supported by a glossary, an index and suggested sources for further reading.

Lisa Deresti Betik used to spin wild tales about invisible, blanket-eating alligators in her room, and now she writes fun, fascinating nonfiction books for children, including In the Dark: The Science of What Happens at Night. Born in Sault Ste. Marie, Ontario, Lisa grew up surrounded by majestic lakes and forests that encouraged her curiosity. She now lives in Waterloo, Ontario, with her family, where she keeps a Little Free Library on their front lawn.

Lisa Deresti Betik's profile page

Josh Holinaty détient un diplôme du Alberta College of Art & Design. Il a illustré de nombreux livres et ses illustrations ont été publiées entre autres dans Wired, The New York Times et The Walrus. Josh a grandi en Alberta avec ses frères et soeurs qui essayaient toujours de lui prendre ses croustilles. Maintenant, il vit à Toronto, en Ontario, où il peut [enfin] manger ses croustilles en paix.

Josh Holinaty graduated from the Alberta College of Art & Design and has created illustrations for clients such as The New York Times, Wired, and The Walrus. Josh is also the illustrator of A Beginner's Guide to Immortality: From Alchemy to Avatars and It's Catching. Originally from Alberta, he now lives in Toronto, Ontario.

Josh Holinaty's profile page

• Short-listed, Red Cedar Book Award, BC Young Reader's Choice
• Commended, Yellow Cedar Award, Ontario Library Association
• Short-listed, Information Book Award, Vancouver Children's Literature Roundtable

... provides a rich wealth of information that will appeal to readers of all ages ...

CM Magazine

... Betik provides more than enough far-out facts to keep readers engaged.

Quill & Quire

A solid choice for libraries and classrooms studying the nocturnal world. Fun science.

School Library Journal

Illuminating insights for nocturnal naturalists.

Kirkus Reviews