Megan McDonald Books

Judy Moody and Friends: Frank Pearl in The Awful Waffle Kerfuffle

By Megan McDonald Illustrated By Erwin Madrid

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Frank Pearl is chasing a prize in this Judy Moody® story for newly independent readers.Just once, Frank Pearl would like to win at something! He is going to win a prize if it’s the last...

Frank Pearl in the Awful Waffle Kerfuffle

By Megan McDonald, Erwin Madrid

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Amy Namey in Ace Reporter

By Megan McDonald, Erwin Madrid

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Judy Moody Girl Detective

By Megan McDonald

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When a puppy who is being trained as a police dog goes missing, third-grader Judy forms a detective agency to solve the mystery, imitating her literary heroine, Nancy Drew.

Judy Moody and the bad luck charm

By Megan McDonald

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"The lucky penny in Judy Moody's pocket sure does seem to be working. She can't stop winning-at bowling, spelling, the unbeatable Prize Claw, everything! For sure and absolute positive, she'll ride...

Judy Moody

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Judy Moody Book 1

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Judy Moody Declares Independence

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Judy Moody Declares Independence

By Megan McDonald Illustrated By Peter H. Reynolds

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When a visit to Boston spurs Judy's interest in Revolutionary heroes and heroines, she's soon on a quest for more independence in this hilarious episode from Megan McDonald and Peter H. Reynolds. H...

Judy Moody Gets Famous

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.