John McKinney Books

Let s go geocaching

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Teaches children how to use a GPS (Global Positioning System) receiver in order to find caches, or hidden objects, while out hiking, and to learn orienteering.

Let s go hiking

By John McKinney

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A title written in conjunction with the Boy Scouts of America encourages boys to become familiar with the great outdoors and to enjoy reading about nature trails that lead to waterfalls, mountainto...

Great walks of North America, New England

By John McKinney

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Great walks of North America.

By John McKinney

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Teaching About Adolescence

By John McKinney

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California coastal trails

By Jack Adler, John McKinney

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A day hiker's guide to Southern California

By John McKinney

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California s State Parks

By John McKinney

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California s National Parks

By John McKinney

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Californias Coastal Parks

By John McKinney

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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.