Lisa Graff

Lisa Graff grew up in Big Bear, California, and now lives in New York, New York.

Lisa Graff

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Sophie Simon Solves Them All book trailer

Sophie Simon is one smart cookie... watch this adorable trailer that takes you inside Sophie's 3rd grade classroom.

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Lisa Graff

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Sophie Simon Solves Them All

Lisa Graff, illustrated by Jason Beene
Square Fish

For a third grader, Sophie Simon is one smart cookie. She enjoys teaching herself advanced calculus and has performed successful heart surgery on an earthworm....

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