Dan Fesperman Books

Choices 3e From Practice to Mastery

By Kate Mangelsdorf, Evelyn Posey, Maria Villar Smith, Barbara D. Sussman

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The Arms Maker of Berlin

By Dan Fesperman

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An unflinching thriller that takes us deep into the White Rose resistance movement during World War II. • “Compelling…nonstop action.” —The Baltimore Sun When Nat Turnbull’s mentor, Gordon Wolfe, i...

The Double Game

By Dan Fesperman

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From the acclaimed author of Layover in Dubai—the story of a journalist’s journey to Vienna, Prague, and Budapest in search of the truth about a spy-turned-novelist’s decades of dark secrets… “As...

The Prisoner of Guantanamo

By Dan Fesperman

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The Amateur Spy

By Dan Fesperman

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The Small Boat of Great Sorrows

By Dan Fesperman

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Lie in the Dark

By Dan Fesperman

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Safe houses

By Dan Fesperman

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"In this gripping new work of suspense from the author of The Double Game, a young woman discovers a nefarious truth at the heart of the CIA's operations in postwar Berlin and goes on the run for h...

The Cover Wife

By Dan Fesperman

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Lie in the Dark

By Dan Fesperman

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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.