Lynne Olson Books

"When the Nazi Blitzkrieg subjugated Europe in World War II, London became the safe haven for the leaders of seven occupied countries--France, Belgium, Holland, Luxembourg, Norway, Czechoslovakia a...

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...

Last Hope Island

By Lynne Olson

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A groundbreaking account of how Britain became the base of operations for the exiled leaders of Europe in their desperate struggle to reclaim their continent from Hitler, from the New York Times be...

Troublesome Young Men

By Lynne Olson

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Last Hope Island Britain Occupied Europe and the Brotherhood That Helped Turn the Tide of War

By Arthur Morey, Lynne Olson, Kimberly Farr

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Madame Fourcade s Secret War

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Empress of the Nile

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Citizens of London

By 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.