Tony Gentry Books

Alice Walker Black Americans of Achievement

By Tony Gentry

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Jesse Owens

By Tony Gentry, Heather Lehr Wagner

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Jesse Owens Champion Athlete Black Americans of Achievement

By Tony Gentry, Heather Lehr Wagner

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Dizzy Gillespie

By Tony Gentry

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A biography of the Afro-American musician and "ambassador of jazz" who introduced the world to "bebop."

Paul Lawrence Dunbar (Black Americans of Achievement)

By Tony Gentry

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Examines the life of the poet and novelist who battled racism and accepted the challenge of depicting the black experience in America.

Jesse Owens

By Tony Gentry

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A biography of the track and field star who won three gold medals in the 1936 Summer Olympic Games.

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.