Selma Orleans Books

Pencil puzzles

By Selma Orleans

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Pencil Puzzles 6

By Selma Orleans

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The Great Big Book of Pencil Puzzles

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Giant Book of Puzzles

By Jack Orleans, Selma Orleans

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Great Big Book of Pencil Puzzles

By Jacob Orleans

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Hours of challenging puzzle fun can be found in this giant treasury of quizzes, word games, and brain teasers. Are you a pencil puzzler? Grab your pencil and test your puzzle IQ with scrambled wo...

Pencil Puzzles 5

By Selma Orleans

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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.