DR. Nancy Davidson Books

The Secrets Of Lost Cats: One Woman, Twenty Posters, And A New Understanding Of Love

By Nancy Davidson, Dr. Nancy Davidson MD, DR. Nancy Davidson

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ZAK Five days after Zak’s disappearance, I’d learned nothing as to his whereabouts. People had called to wish me luck—but no one in the neighborhood had seen Zak. Not even Old Man Tony, who sat o...

The Secret Of Lost Cats

By Nancy Davidson, DR. Nancy Davidson, Davidson, Dr. Nancy

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When her orange tabby, Zak, disappeared, therapist Nancy Davidson made a lost-cat poster. Zak was found, and Nancy was ecstatic -- but changed. She became acutely aware of lost cat posters, drawn t...

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.