Zsuzsa Polgar Books

Alpha Teach Yourself Chess in 24 Hours

By Paul Truong, Leslie Horvitz, Zsuzsa Polgar, Susan Polgar, Hoainhan Paul Truong

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A world champion s guide to chess

By Zsuzsa Polgar

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Topics include Chess Essentials, Tactics, Strategy, Pattern Recognition, Endgames, Chess Etiquette, Advice for Parents & Coaches and much more! Susan Polgar is a winner of four Women's World Champi...

Queen of the Kings Game

By Christopher Chabris, Zsuzsa Polgar, Jacob Shutzman, Bleys Rose

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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.