Charles E. Mercer Books

Presents the story behind the building of the colossal statue in New York Harbor, France's gift to the U.S. commemorating friendship and symbolizing freedom, and describes its current renovation.

The Battlestar Galactica storybook

By Charles E. Mercer

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Humans, having been driven by the Cylons from the last surviving colonies in the universe and hoping to find Earth, their last chance for help, must battle the destructive Cylons again from their c...

Roberto Clemente

By Charles E. Mercer

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An easy-to-read biography of the Pittsburgh Pirate, famous for his hitting and his untimely death at an early age.

Gerald Ford

By Charles E. Mercer

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A simple biography of the thirty-eighth President, who was first to be sworn into office as a result of a Presidential resignation.

Jimmy Carter

By Charles E. Mercer

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A biography of the thirty-ninth President, who arrived at the White House via a peanut farm, the Naval Academy, and the governorship of Georgia.

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.