John Gillis Books

Islands of the Mind

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In Islands of the Mind, John R. Gillis takes us on a rich and fascinating journey through the centuries and across the ocean in search of the meanings of islands in the collective imagination and h...

A world of their own making

By John R. Gillis

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Our whole society may be obsessed with "family values," but, as historian John Gillis points out in this entertaining and eye-opening narrative, most of our images of "home sweet home" are of very...

Board Member Manual

By John Gillis

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Nonprofit Personnel Policies

By John Gillis

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The 1995 Board Member Manual

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1999 Board Member Manual

By John Gillis

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Board Member Manual

By Statton

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No Faster Than a Walk

By Stephen Gillis, John Gillis

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1997 National High School Sports Record Book

By John Gillis

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Fluid frontiers

By Fluid Frontiers Exploring Oceans Islands And Coastal Environments Conference 2011 Rockland Me.

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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.