Kathy McCoy PhD Books

We don t talk anymore

By Kathy McCoy

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A meaningful and supportive guide to rebuilding family relationships and dealing with the pain of estrangement.

Purr therapy

By Kathy McCoy

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"Cats aren't a typical choice for animal-assisted psychotherapy, but Timmy and Marnia are anything but typical. Research has found that petting a cat can lower blood pressure and a cat's purr is t...

The Teenage Body Book, Revised and Updated Edition

By Kathy McCoy PhD, Charles Wibblesman

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Everything teenagers need to know about nutrition, health, fitness, emotions, and sexuality.Some teen issues are timeless: self-consciousness and uncertainty over rapidly changing bodies, tumultuou...

The Teenage Body Book, Revised and Updated Edition

By Kathy McCoy PhD, Charles Wibblesman

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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.