Phillip Peterson Books

"Modern Gun Values" is a uniquely valuable guide to the world of modern firearms. (Modern firearms refers to those built from c. 1899 to present. Guns made before 1899 are considered antiques. The...

Standard catalog of military firearms

By Phillip Peterson

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"Standard Catalog of Military Firearms, 7th edition," contains more than 2,000 models of military firearms manufactured between 1870 and today. With more than 1,600 photos and expanded descriptions...

Standard Catalog of Military Firearms

By Philip Peterson

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Standard Catalog Of Military Firearms The Collectors Price And Reference Guide

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Gun Digest Buyer s Guide to Assault Weapons

By Phillip Peterson

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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.