William B. Secrest Books

The man from the Rio Grande

By William B. Secrest

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Fresno County the Pioneer Years

By William B. Secrest, Charles W. Clough

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Behind San Quentin s walls

By William B. Secrest

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It's one of the most famous prisons in American history, featured in countless movies and novels. Its inmates have included such diverse characters as Charles Manson, Sirhan Sirhan, Eldridge Cleave...

California desperadoes

By William B. Secrest

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Perilous Trails Dangerous Men

By William B. Secrest

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When the Great Spirit Died

By William B. Secrest

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Dark and Tangled Threads of Crime

By William B. Secest, William B. Secrest

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California Feuds

By William B. Secrest

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California disasters, 1812-1899

By William B. Seacrest

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California Badmen

By William B. Secrest

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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.