Marc Simmons Books

Billy Blackfeet in the Rockies

By Marc Simmons

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Spanish pathways

By Marc Simmons

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"Historian Marc Simmons is already a favorite among scholars, students, Hispanophiles, and borderlands enthusiasts for his careful, readable histories of the American Southwest. In the twelve essay...

Spanish pathways

By Marc Simmons

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Coronado s Land

By Marc Simmons

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The old trail to Santa Fe

By Marc Simmons

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"The trail experience begat a fierce passion for prairie travel," wrote Josiah Gregg after journeying overland on the Santa Fe Trail in the 1840s. That same appeal is evoked anew in the pieces by M...

New Mexico

By Marc Simmons

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The old trail to Santa Fe

By Marc Simmons

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Millie Cooper's ride

By Marc Simmons

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During the War of 1812, when settlers at Fort Cooper, Missouri, are besieged by a coalition of Indian nations allied with the British, twelve-year-old Millie volunteers to ride to nearby Fort Hemps...

Spanish government in New Mexico

By Marc Simmons

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Albuquerque

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.