Gerald Astor Books

Crisis in the Pacific

Average: 0.00, 0 Ratings

From the depths of defeat...On December 8, 1941, one day after the bombing of Pearl Harbor, the Japanese Air Force struck the Philippines in the first blow of a devastating invasion.With an undersu...

June 6, 1944

By Gerald Astor

Average: 0.00, 0 Ratings

In ships and planes, they crossed the English Channel.On the other side Hitler’s army waited.And the longest day was about to begin....In the spring of 1944, 120,000 Allied soldiers crossed the Eng...

The Greatest War Volume I

By Gerald Astor

Average: 0.00, 0 Ratings

The Greatest War Volume II

By Gerald Astor

Average: 0.00, 0 Ratings

The Greatest War Volume III

By Gerald Astor

Average: 0.00, 0 Ratings

The disease detectives

By Gerald Astor

Average: 0.00, 0 Ratings

The disease detectives

By Gerald Astor

Average: 0.00, 0 Ratings

The Jungle War: Mavericks, Marauders, and Madmen in the China-Burma-India Theater of World War II

By Gerald Astor

Average: 0.00, 0 Ratings

"The massive invasions, spectacular sea battles, and devastating bombing raids of World War II could not have occurred without enormous organizations, meticulous coordination, and absolute discipli...

Presidents at War: From Truman to Bush, The Gathering of Military Powers To Our Commanders in Chief

By Gerald Astor

Average: 0.00, 0 Ratings

The Baseball Hall of Fame 50th Anniversary Book

By Gerald Astor

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.