William H. Brewer Books

Up and Down California in 1860-1864: The Journal of William H. Brewer, Fourth Edition, with Maps

By William H. Brewer, William Henry Brewer

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"In 1860 William Brewer, a Yale-educated teacher of the natural sciences and a young widower, eagerly accepted an offer from Josiah Whitney to assist in the first geological survey of the state of...

Up and Down in California 1860 1864

By William H. Brewer

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Such a landscape!

By William Henry Brewer

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Up and Down California in 1860 1864

By William H. Brewer

Average: 0.00, 0 Ratings

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.