In this collection of secret files heretofore hidden from kids for thousands of years, Caldecott medalist David Wisniewski uncovers the "real" reasons grown-ups do the things they do. The shocking truth will have readers rolling in the aisles! Full color.

The Secret Knowledge of Grown-Ups 2001, HarperTrophy, New York, NY

ISBN-13: 9780064437530

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The Secret Knowledge of Grown-Ups 2001, Turtleback Books, New York, NY

ISBN-13: 9780613442541

Bound for Schools & Libraries edition

Hardcover

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The Secret Knowledge of Grown-Ups 2001, Perfection Learning

ISBN-13: 9781613837467

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The Secret Knowledge of Grown-Ups 1998, HarperCollins Publishers, New York, NY

ISBN-13: 9780688153397

Hardcover

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The Secret Knowledge of Grown-Ups 1998, HarperCollins Publishers, New York, NY

ISBN-13: 9780688153403

Hardcover

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