William Gray Books

Vascular Medicine: Therapy and Practice

By Thomas Cissarek

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Unity Through Diversity. A Festschrift for Ludwig von Bertalanffy 2 Volume Set

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General systems theory and psychiatry

By William Gray

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Gray provides detailed information on adventure activities and destinations as diverse as rafting the rapids below the Victoria Falls and trekking the Inca Trail in Peru to sea kayaking, mountain b...

By A. W. Gray

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Challenging the gifted and talented through mentor-assisted enrichment projects

By William A. Gray

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Outlook on Our Inner Western Way

By Wm Gray

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Between Good Evil

By William Gray

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The talking tree

By William G. Gray

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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.