William B. Feis Books

Grant's secret service

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""The art of war is simple enough," said Ulysses S. Grant. "Find out where your enemy is. Get at him as soon as you can. Strike him as hard as you can and as often as you can and keep moving on." M...

Grant s Secret Service

By William B. Feis

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For the Common Defense

By Allan Reed Millett

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For the Common Defense

By William B. Feis, Peter Maslowski, Allan R. Millett

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Vicksburg Campaign March 29 May 18 1863

By William B. Feis, Steven E. Woodworth, Stephen Nathaniel Dossman, Michael B. Ballard, Charles D. Grear

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The grand old man of the Missouri Valley

By William B. Feis

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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.