Maggie Testa Books

Super team

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"When Night Ninja steals all the sports equipment from Sports Day to make his Ninjalinos super strong, it's up to the PJ Masks to get it back! There's only one problem: Gekko is determined to prove...

Daniel visits the library

By Maggie Testa

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"Daniel Tiger and Prince Wednesday are so excited for story time at the library! But first they have to learn how to be calm and quiet. Can they calm down before story time starts?" -- provided by...

Batman Is Fast

By Maggie Testa

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The Ultimate Guide to the Dragons

By Cordelia Evans, Maggie Testa

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Miffy at the Library

By Maggie Testa

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Miffy at the library

By Maggie Testa

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Miffy and Grunty are excited to help Aunt Alice at the library. Putting books on shelves is fun until they learn that they are doing it the wrong way. Luckily, Aunt Alice helps them learn to do it...

Evie the Knight

By Maggie Testa

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"When Evie says being a knight is easy, Mike decides to show her what knightly training is all about. But after the Vikings come to town, Evie realizes that being a knight might be harder than she...

The Adventures of Daniel Tiger Ready to Read

By Various

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Daniel goes out for dinner

By Maggie Testa

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Follows Daniel's efforts to practice patience while hungrily waiting for his dinner to arrive at a restaurant.

Daniel goes out for dinner

By Maggie Testa

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Follows Daniel's efforts to practice patience while hungrily waiting for his dinner to arrive at a restaurant.

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.