Sheldon Paul Blau Books

Marina and Fern, eager to learn magic just for fun, convince Xochitl to ask her grandmother, a curandera, to teach them, and as her apprentices the three learn about casting spells, healing, and life.

Living with Lupus

By Sheldon Blau, Dodi Schultz

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How to Get Out of the Hospital Alive

By Sheldon Paul Blau

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Arthritis complete, up-to-date facts for patients and their families

By Sheldon Paul Blau

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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.