Jon C. Halter Books

Describes the top secret missions and projects of both sides during World War II and discusses the impact of these projects on the outcome of the war and their effect on the course of history.

Their backs to the wall

By Jon C. Halter

Average: 0.00, 0 Ratings

Recounts six famous battles that changed the course of history: Trenton, Gettysburg, the Marne, the Battle of Britain, Stalingrad, and Midway.

Top secret projects of World War II

By Jon C. Halter

Average: 0.00, 0 Ratings

Describes the top secret missions and projects of both sides during World War II and discusses the impact of these projects on the outcome of the war and their effects on the course of history.

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.