Sam Williams Books

Ballet class

By Bernette G. Ford

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Frosty the Snowman

By Sam Williams, Walter Rollins, Steve Nelson

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Free as in Freedom: Richard Stallman's Crusade for Free Software

By Sam Williams

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"Why would Microsoft executives lie awake at night worrying about the antics of a long-haired, renegade hacker named Richard Stallman? Why do some of the smartest programmers on the planet revere t...

My Do It

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The baby's word book

By Williams Sam

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Labeled pictures show babies and many objects--clothes, toys, body parts, food, and more--that are part of their world. On board pages.

My Do It Toddler Story Books

By Ros Asquith

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Angel and the Elf 1

By Sam Williams

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Angel and the Elf 2

By Sam Williams

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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.