Edwin G. Warman Books

The most complete reference and price guide to 500 categories of antiques and collectibles with detailed descriptions of 50,000 objects and their current values. 1,000 photos, illustrations.

Warman'S Americana & Collectibles

By Edwin G. Warman, Ellen T. Schroy, Ellen Tischbein Schroy

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Featuring the most desirable collectibles from the 1930s to the present day, this text provides reference information, collecting hints, history, reproduction and copycat information, as well as pr...

Warman'S Americana And Collectibles

By Edwin G. Warman, Harry L. Rinker

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x, 543 pages : 23 cm Includes index

Warman'S Antiques And Their Prices

By Edwin G. Warman, Harry L. Rinker

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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.