Carolyn Gloeckner Books

Joe Theismann

By Carolyn Gloeckner

Average: 0.00, 0 Ratings

A biography of the Washington Redskin's valuable quarterback.

Fernando Valenzuela

By Carolyn Gloeckner

Average: 0.00, 0 Ratings

A biography of the baseball player from Sonora, Mexico, who since 1980 has been setting records and winning honors as a pitcher for the Los Angeles Dodgers.

Marvelous Marvin Hagler

By Carolyn Gloeckner

Average: 0.00, 0 Ratings

A biography of the middleweight champion chosen Boxer of the Year of 1983 by the World Boxing Council.

Gulliver s Travels

By Jonathan Swift

Average: 0.00, 0 Ratings

Sugar Ray Leonard

By Carolyn Gloeckner

Average: 0.00, 0 Ratings

A biography of the welter weight champion who lost only one out of the thirty-three matches of his career.

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.