William E. Butterworth IV Books

Top Secret

By William E. Butterworth IV, Alexander Cendese

Average: 0.00, 0 Ratings

The Attack

By William E. Butterworth IV, William E. Butterworth III

Average: 0.00, 0 Ratings

The Enemy of My Enemy

By William E. Butterworth IV, William E. Butterworth III

Average: 0.00, 0 Ratings

The saboteurs

By William E. Butterworth IV, William E. Butterworth III

Average: 0.00, 0 Ratings

A new OSS adventure finds the agents of Wild Bill Donovan fighting the Battle of the Atlantic on two fronts, a situation that is compromised by a possible saboteur.

The vigilantes

By William E. Butterworth III

Average: 0.00, 0 Ratings

Outlaws

By William E. IV Butterworth, William E. Butterworth III

Average: 0.00, 0 Ratings

The spymasters

By William E. Butterworth III

Average: 0.00, 0 Ratings

Victory and honor

By William E. Butterworth III

Average: 0.00, 0 Ratings

Facing daunting challenges in the form of political threats against the OSS and the early stirrings of the Cold War, Cletus Frade and his colleague conduct a secret operation to counter the growing...

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.