Michael Gray Books

Six years in the making, Drug Crazy offers a gripping account of the violence, corruption, and chaos that have characterized America's drug war since its inception in 1914. Weaving a provocative an...

All Across the Telegraph

By John Bauldie, Michael Gray

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HAND ME MY TRAVELIN' SHOES: IN SEARCH OF BLIND WILLIE MCTELL.

By Gray Michael, Michael Gray

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xi, 432 pages : 24 cm

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.