Gerald Sullivan Books

The Race for the Eighth: The Making of Congressional Campaign: Joe Kennedy's Successful Pursuit of a Political Legacy

By Gerald Sullivan

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Margaret Mead, Gregory Bateson, and Highland Bali: Fieldwork Photographs of Bayung Gede, 1936-1939

By Gerald Sullivan

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"In 1936 anthropologist Margaret Mead and her husband, Gregory Bateson, retreated from lowland Bali, which was the focal point of much scholarly and tourist activity, to the remote village of Bayun...

Who Spoke Up

By Gerald Sullivan, Nancy Zaroulis, N. L. Zaroulis

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Word enrichment

By Gerald Sullivan

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Chilling out

By Gerald Sullivan

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Change Management in SAP Projects

By Gerald Sullivan, Paul Roth

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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.