Don Schwartz Books

Pastel

By Don Schwartz, Walter Thomas Foster

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Beating the Impossible

By Bronwyn Preece, Don Schwartz, Lee Schwartz

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Suddenly Last Summer

By T. R. Montaine, Kate Marroso, Don Schwartz

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January Cold

By T. R. Montaine, Don Schwartz, Todd Trapani

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The Power of Honest Medicine

By Julia Schopick, Don Schwartz

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This book is about Low Dose Natlrexone, a low-cost treatment for autoimmune diseases such Crohn's, Fibromyalgia, Chronic Fatigue Syndrome, Rheumatoid Arthritis, MS, Lupus, etc. There are patient co...

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.