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The daring undercover agent and Caldecott medalist Wisniewski wears multiple disguises as he continues to reveal the real reasons for grown-up rules for children. Full color.

The Secret Knowledge of Grown-Ups: The Second File 2004, HarperCollins Publishers, New York, NY

ISBN-13: 9780060590178

Trade paperback

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The Secret Knowledge of Grown-Ups: The Second File 2001, HarperCollins Publishers, New York, NY

ISBN-13: 9780688178543

Hardcover

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The Secret Knowledge of Grown-Ups: The Second File 2001, HarperCollins Publishers, New York, NY

ISBN-13: 9780688178550

Hardcover

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