Marlene Toby Books

A. A. Milne, author of Winnie-the-Pooh

By Marlene Toby

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The life of A. A. Milne, the creator of Winnie-the-Pooh, told in very simple language.

Madam C. J. Walker

By Marlene Toby

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A biography of the Afro-American businesswoman whose invention of facial creams and other cosmetics led to great financial success.

James M. Barrie, author of Peter Pan

By Marlene Toby

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The life of J. M. Barrie, the creator of Peter Pan, told in very simple language.

Leonard Bernstein

By Marlene Toby

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Examines the life and career of the famous composer, conductor, pianist, and teacher.

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.