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Authors and Illustrators

Mac Barnett

BIOGRAPHY

Mac Barnett is the author of several picture books, including Billy Twitters and His Blue Whale Problem, Guess Again!, and Oh No!: Or How My Science Project Destroyed the World. He also writes the Brixton Brothers series of mysteries. Mac is the founder of the Echo Park Time Travel Mart, a convenience store for time travelers, and serves on the board of 826LA, a nonprofit writing and tutoring center.

HarperCollins Childrens
HarperCollins Childrens
HarperCollins Childrens
HarperCollins Childrens
HarperCollins Childrens