Patti Callahan Henry Books

Struggling with the disintegration of her marriage at the same time her controlling mother passes away, Ellie is perplexed when she learns that her ex-boyfriend, Hutch, is creating a documentary ab...

And then I found you

By Patti Callahan Henry

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Enjoying her loving family life and career successes, Kate Vaughn anticipates a marriage proposal from her boyfriend and realizes that she cannot move forward until she reconnects with a past love...

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.