Douglas Kennedy Books

Years after vowing to herself and her parents to never marry, have children and lead the resentful life they chose, Jane, now a Harvard professor, becomes pregnant unexpectedly Resolved as she's be...

Five Days

By Douglas Kennedy

Average: 0.00, 0 Ratings

For twenty years, Laura has been a good wife and mother. She's supported her husband through redundancy, she's worried about her son, she's encouraged her daughter. She has been constant, caring an...

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.