Heather Lehr Wagner Books

Ronald Reagan

By Heather Lehr Wagner

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Benjamin Hooks

By Heather Lehr Wagner

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A biography of African American lawyer Benjamin Hooks, who continues to speak and teach about racial justice and equality since his 1992 retirement from the position of executive director of the NA...

Gertrude Bell

By Heather Lehr Wagner

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Mary Kingsley

By Heather Lehr Wagner

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Hillary Rodham Clinton

By Heather Lehr Wagner

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Ronald Reagan Great American Presidents

By Heather Lehr Wagner

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George Washington

By Heather Lehr Wagner

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John Adams

By Heather Lehr Wagner

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A biography of the second president of the United States.

Thomas Jefferson

By Heather Lehr Wagner

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A biography of the second president of the United States, whose leadership was important in shaping the country's new government.

The Division of the Middle East

By Heather Lehr Wagner

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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.