J. Courtney Sullivan Books

Commencement

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NATIONAL BESTSELLER • The New York Times best-selling author of Maine brings us a sparkling tale of friendship and a fascinating portrait of the first generation of women who have all the opportuni...

Maine

By J. Courtney Sullivan

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Three generations of women converge on the family beach house in this wickedly funny, emotionally resonant story of love and dysfunction.

Maine

By J. Courtney Sullivan

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The Engagements

By J. Courtney Sullivan

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"The story of four couples linked over several decades by one diamond ring, and the woman who launched the most famous diamond campaign in the world"--

The engagements

By J. Courtney Sullivan

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Dating up

By J. Courtney Sullivan

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Friends and Strangers

By J. Courtney Sullivan, Kate Rudd

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Friends and Strangers

By J. Courtney Sullivan

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The Engagements

By J. Courtney Sullivan

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Maine

By J. Courtney Sullivan

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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.