Thomas W. Gilbert Books

Discusses baseball events of the 1930s, including Hack Wilson's 1930 season, the last days of Babe Ruth, Lou Gehrig's career, and the advent of baseball coverage on the radio.

The soaring twenties

By Thomas W. Gilbert

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Discusses the changes in professional major league baseball during the 1920s, including the pennant race scandal in 1920, the founding of the Negro Leagues, Babe Ruth's career, the farm system, and...

Lee Trevino

By Thomas W. Gilbert

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A biography of acclaimed Mexican American golfer, friendly, easygoing Lee Trevino.

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.