John Gilstrap Books

Scott free

By John Gilstrap

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Nathan s Run

By John Gilstrap

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Huida de Nathan La

By John Gilstrap

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Damage Control

By John Gilstrap

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Burned Bridges

By John Gilstrap

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An electrifying new series featuring Irene Rivers (code name: Wolverine), the unforgettable FBI Director from New York Times bestselling author John Gilstrap’s blockbuster, award-winning Jona...

At All Costs

By John Gilstrap

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When undercover fugitives are found in the suburbs, they must race against time—and the FBI—to clear their names in this “superior page turner” (David Baldacci).The Brighton...

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.