Puzzler Media Books

The Times Japanese Logic Puzzles: Hitori, hashi, slitherlink and mosaic

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Kakuro On The Go

By Puzzler Media

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Sudoku Iron Man 1

By Puzzler Media

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150 of the most fiendishly difficult, never-before-published Sudoku puzzles! The brand-new Sudoku puzzle series that puts even the most fervent players' skills to the test. There are those who pl...

Kakuro To Go

By Nikoli Publishing, Puzzler Media

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Advanced Sudoku

By Puzzler Media

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More Original Sudoku for Kids

By Puzzler Media

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Puzzler Travel Puzzles 2

By Puzzler Media

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The Giant Book of Crosswords

By Puzzler Media

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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.