David R. Gillham Books

A bend in the river

By V. S. Naipaul

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City of women

By David R. Gillham

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City of women

By David R. Gillham

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City of women

By David R. Gillham

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City of Women

By David R. Gillham

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NEW YORK TIMES BESTSELLERWhom do you trust, whom do you love, and who can be saved? A gripping tale of Berlin in the Second World War, from the author of Annelies. It is 1943—the height of the Seco...

City of women

By David R. Gillham

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Whom do you trust, whom do you love, and who can be saved? At the height of World War II, Berlin has become a city of women. Sigrid Schröder, the model German soldier's wife, goes to work every day...

Ana Frank. La fuerza de un sueno

By David R. Gillham, Susana Olivares

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De vertrouwelinge

By David R. Gillham

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Een met een Oostfrontsoldaat getrouwde Berlijnse vrouw raakt in 1943 toevallig betrokken bij de illegaliteit.

Annelies

By David R. Gillham

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Annelies

By David R. Gillham

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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.