Harold Woods Books

Equal justice

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A biography of Sandra Day O'Connor, the first woman Supreme Court justice, which includes her childhood, her early legal career, and her life since her appointment.

Bill Cosby, making America laugh and learn

By Harold Woods

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A biography of the comedian and educator, originally from North Philadelphia, who is known as the creator of Fat Albert, Weird Harold, and other characters based on his childhood experiences.

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.