Cat Johnson Books

Marine Gunnery Sergeant John "Crash" O'Malley has two goals for the immediate future. One, enjoy his liberty in New York City, and two, survive his deployment to Afghanistan. What he didn't plan on...

Sirens of SaSS Anthology

By Jennifer Armentrout, Lexi Buchanan, Amy Marie, Ann Mayburn, Cat Johnson

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Trumpoem

By Cat Johnson

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Cat Haus

By Carrie Lane, Cat Johnson

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Cowboy Hearts

By Cat Johnson

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Nacht Mit Einem SEAL

By Melina Oikonomou, Cat Johnson

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Flanked

By Cat Johnson

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Just Desserts

By Cat Johnson

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Escape with a Hot SEAL

By Cat Johnson

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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.