About the Author

JILL McDONALD is the Missouri-based author-illustrator of the Hello, World! nonfiction children's book series. Her cheery and colorful art can be found on clothing, fabric, bedding, stationery, puzzles, and games and in a variety of books for babies and toddlers. See more of her work at jillmcdonalddesign.com and follow her on Instagram at @missjillmcdonald.

Reviews

★ "Retains the original series’ bright colors and playful style. . . . Popular dinos mix with the less familiar (Herrerasaurus, Deinocheirus), and curious kiddos will get a good sense of the Mesozoic’s shifting environment as well as how dinos evolved with the changing times."—Booklist, starred review