Jay Jennings Books

True Grit

By Blount Roy Jr., Jay Jennings, Jacquelyn Mitchard, Donna Tartt, Charles Portis

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Escape Velocity

By Jay Jennings, Charles Portis

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Charles Portis: Collected Works (LOA 369)

By Charles Portis Jay Jennings Editor

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The ultimate Portis: for the first time in one collector's volume, the complete fiction and collected nonfiction of the author of True GritSummer reading recommendation in THE WASHINGTON POST,...

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.