The World at Night is an enthralling guide that provides an expansive overview of what happens while (most) humans sleep, described through digestible passages and captivating illustrations. Travel writer and children's author Ben Lerwill (The Biggest Dog in the Book) establishes what night is, then transports readers to the world's oceans, forests, plains, deserts, poles, and cities to meet nocturnal and crepuscular ("active at dawn and dusk") critters, like climbing glowworms in Europe, Greenland's double-coated musk oxen, cacomistles ("rare, shy, raccoon-like creatures") tiptoeing through Mexico City, and pizza-loving Chicago rats. Intriguing floras are also featured, such as the Desert Ironwood tree that protects saplings beneath it, and concepts like light pollution and moon phases are smoothly tied in. Every page brims with whimsical art by Colombian artist Paula Bossio (The Wild Life of Animals), whose warm background tones, striking use of light and shadow, and subtly anthropomorphized fauna will likely inspire giggles. Fun spreads require turning the book sideways, while cross-sections of select places (like the Antarctic research section) reveal humans working past dark. The World at Night is a stellar nighttime companion. --Samantha Zaboski, freelance editor and reviewer