James Scala Books

Making the Vitamin Connection: The Food Supplement Story

By James Scala

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If You Can T Won t Stop Smoking

By James Scala

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The high blood pressure relief diet

By James Scala

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The New Eating Right for a Bad Gut

By James Scala

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“Straightforward recommendations for healthy eating that easy on the gut… Hopeful and helpful.”—Publishers WeeklyIn this completely revised and updated edition of his classic book on treating "bad...

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.