Marc Simmons Books

Full-length account of the 1843 murder of wealthy merchant Don Antonio Jose Chavez by outlaws on the Santa Fe Trail, a murder which threatened to disrupt the profitable overland trade between the 3...

Southwestern Colonial Ironwork

By Marc Simmons

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New Mexico

By Marc Simmons

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Southwestern colonial ironwork

By Marc Simmons

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Southwestern colonial ironwork

By Marc Simmons

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Massacre on the Lordsburg road

By Marc Simmons

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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.