William Wolf Books

Whacking Jimmy: A Novel

By William Wolf, William L. Wolf, Wolf, William

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Amazon.com Review The Mafia is not an equal-opportunity employer, a fact made emphatically clear to Annette Tucci, daughter of one mobster, daughter-in-law of another, and the worst mother since M...

American Fighter Bombers in World War II

By William Wolf, Wolf William Dr.

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Douglas XB-19: An Illustrated History Of America'S Would-Be Intercontinental Bomber

By William Wolf

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Musik Aesthetik in Kurzer Volume 1

By William Wolf

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Musik Aesthetik in Kurzer Volume 1

By William Wolf

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B-25 Mitchell, Vol. 1

By William Wolf

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Volume 1 of our two-volume visual history of the North American B-25 Mitchell The North American B-25 Mitchell is WWII’s most heralded and versatile medium bomber. This Volume 1 (of 2) gives r...

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.