Scott Kroopf Books

Son of the mask

By Lance Khazei, Lawrence Guterman, Scott Kroopf, Erica Huggins

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The ancient mask has gone missing again. This time it washes up on the banks of a little stream where it is found by Otis the Dog, who brings it home to Tim Avery and his wife Tonya. Otis plays wit...

They

By Scott Kroopf

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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.