Coffey David Books

"Beautiful and brave, outlandish and unconventional, Princess Agnes Salm-Salm played a sometimes controversial, often conspicuous, and always colorful role in three of the nineteenth century's majo...

John Bell Hood and the struggle for Atlanta

By Coffey David

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The struggle for Atlanta ground on for more than four months. It was one of the most decisive campaigns of the Civil War. When Confederate President Jefferson Davis replaced the cautious General Jo...

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.