Mary Pope Osborne Books

Titanic

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The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Getting the facts behind the fiction has never looked better.Tr...

Twisters and Other Terrible Storms

By Will Osborne

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The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! When Jack and Annie got back from their adventure in Magic Tree H...

Magic Tree House Books 1-4 Boxed Set

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Magic. Mystery. Time-travel. Get whisked back in time in the magic tree house with Jack and Annie in this boxed set featuring books 1-4 of the #1 bestselling chapter book series!Meet Jack and Annie...

Christmas in Camelot

By Mary Pope Osborne

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New York's Bravest

By Mary Pope Osborne

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Tells of the heroic deeds of the legendary New York firefighter, Mose Humphreys.

Magic Tree House Books 5-8 Boxed Set

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Magic. Mystery. Time-travel. Get whisked back in time in the magic tree house with Jack and Annie in this boxed set featuring books 5-8 of the #1 bestselling chapter book series!Jack and Annie’s fr...

Dolphins and Sharks

By Natalie Pope Boyce

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The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Getting the facts behind the fiction has never looked better.Tr...

Ancient Greece and the Olympics

By Natalie Pope Boyce

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The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Getting the facts behind the fiction has never looked better....

American Revolution

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The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Getting the facts behind the fiction has never looked better.Tr...

Sabertooths and the Ice Age

By Natalie Pope Boyce

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The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Getting the facts behind the fiction has never looked better....

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.