Cory SerVaas Books

The Saturday Evening Post antioxidant cookbook

By Cory SerVaas

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Antioxidant Cookbook

By Cory M.D. SerVaas

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The high lysine and fiber cancer prevention cookbook

By Cory SerVaas

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Health questions your children ask

By Cory SerVaas

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Provides answers to a variety of questions children ask about their bodies, illnesses, accidents and injuries, nutrition and weight control, drugs, tobacco, and alcohol, and their appearance.

Health cookbook for family and friends

By Charlotte Snyder Turgeon, Cory Servaas

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Fiber & bran better health cookbook

By Cory SerVaas

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Saturday Evening Post Fiber and Bran Better Health Cookbook

By Cory Servaas

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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.