Alan Herbert Books

Warman s U.S. coin collecting

By Alan Herbert

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Tells you everything you need to know about collecting U.S. coins, including little-known facts.

The Official Price Guide to Mint Errors 6th Edition Official Price Guide to Mint Errors

By Alan Herbert

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Verification of NAMMU Using HYDROCOIN Level 1 Case 2

By Alan Herbert

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Warman s U. S. Coin Collecting

By Alan Herbert

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In the second edition of this popular book, world famous numismatist Alan Herbert returns to answer 1,001 questions, from the routine to the exotic, from collectors, dealers, scholars and anyone cu...

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.