Joseph J. Ellis Books

American Sphinx

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NATIONAL BOOK AWARD WINNER Following Thomas Jefferson from the drafting of the Declaration of Independence to his retirement in Monticello, Joseph J. Ellis unravels the contradictions of the Jeffer...

Passionate sage

By Joseph J. Ellis

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American Creation

By Joseph J. Ellis, Joseph Ellis

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American Creation

By Joseph Ellis

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First family

By Joseph J. Ellis

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Many first couples have come and gone, but John and Abigail Adams continue to be the quintessential American couple. Historian Ellis dissects hundreds of personal letters that were passed between J...

Patriots Portable Professor Patriots Brotherhood of the American Revolution

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Founding Brothers

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American sphinx

By Joseph J. Ellis

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Passionate Sage

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American Sphinx

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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.