D. Brenton Simons Books

The Langhornes of Langhorne Park

By D. Brenton Simons

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Ancestors of Henry Louis Gates Jr

By Johni Cerny, D. Brenton Simons, Jane Ailes, Oprah Winfrey

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Witches, rakes, and rogues

By D. Brenton Simons

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Witches Rakes And Rogues

By D. Brenton Simons

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Boston beheld

By D. Brenton Simons

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In association with NEHGS, the University Press of New England is publishing a new book by NEHGS President and CEO D. Brenton Simons. Boston Beheld: Antique Town and Country Views. Offering a uniqu...

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.