Deborah G. Felder Books

When the Cathberts adopt an orphan, they aren't prepared for Anne Shirley. But the spunky heroine wins everyone's heart and finds herself a true home at last.  

The Three Musketeers

By Deborah G. Felder, Debbie Felder, Alexandre Dumas Adapted By Deborah Felder

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It's "one for all and all for one!" as D'Artagnan and his three pals follow a course of swashbuckling intrigue and adventure in 17th-centry France.  

Jim Carrey

By Deborah G. Felder, Debbie Felder

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Jim Carrey

By Debbie Felder

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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.