Maggie Testa Books

Olivia counts down to Christmas

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With only ten days left until Christmas, Olivia makes a checklist of all the things she wants to do. Based on the characters created by Ian Falconer.

Meet Whiplash

By Maggie Testa

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Whiplash isn't only a supersnail, he's also a superfriend. Zoom, zoom, zoom around with Whiplash!

Welcome to Glendragon Castle

By HIT Entertainment

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"This deluxe, shaped board book with foil on the cover gives Mike the Knight fans a special tour of Glendragon Castle and the characters who live inside it. Die-cut "windows" throughout let readers...

The tricky trail

By Maggie Testa

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Protectively following the trail of his sister when she takes a springtime walk in Glendragon forest, Mike finds her footprints and flowers and wonders what she could possibly be doing.

The tricky trail

By Maggie Testa

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Protectively following the trail of his sister when she takes a springtime walk in Glendragon forest, Mike finds her footprints and flowers and wonders what she could possibly be doing.

Friends are the best

By Maggie Testa

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"Daniel Tiger and Prince Wednesday are best friends. What do best friends do? They love playing together!"--Page 4 of cover.

Flint Lockwood saves the world...again

By Maggie Testa

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Flint Lockwood teams up with another famous inventor, Chester V, to attempt to destroy Flint's food-creating machine, the FLDSMDFR, once and for all.

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.