Lynne Olson Books

Citizens of London

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The acclaimed author of Troublesome Young Men reveals the behind-the-scenes story of how the United States forged its wartime alliance with Britain, told from the perspective of three key American...

Those Angry Days

By Lynne Olson

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NEW YORK TIMES BESTSELLER • NAMED ONE OF THE BEST BOOKS OF THE YEAR BY THE NEW YORK TIMES BOOK REVIEW AND KIRKUS REVIEWSFrom the acclaimed author of Citizens of London comes the definitive acc...

Madame Fourcade's Secret War

By Lynne Olson

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NEW YORK TIMES BESTSELLER • The little-known true story of Marie-Madeleine Fourcade, the woman who headed the largest spy network in occupied France during World War II, from the bestselling a...

Traces the crisis period leading up to America's entry into World War II, describing the nation's polarized interventionist and isolationist factions as represented by the government, in the press,...

For Your Freedom and Ours The Kosciuszko Squadron

By Stanley Cloud, Lynne Olson

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For Your Freedom and Ours The Kosciuszko Squadron

By Stanley Cloud, Lynne Olson

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For Your Freedom and Ours The Kosciuszko Squadron

By Stanley Cloud, Lynne Olson

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For Your Freedom and Ours

By Stanley Cloud, Lynne Olson

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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.