Lev Psakhis Books

The Complete Benoni

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The theory behind the French Defense has grown so exponentially that it takes three entire volumes to cover it all; here is the first, written by the recognized master of the move. Former Soviet ch...

French Defence 3Nc3 Bb4

By Lev Psakhis

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Advance and Other Anti French Variations

By Lev Psakhis

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French Defence

By Lev Psakhis

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The complete French

By Lev Psakhis

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Advanced Chess Tactics

By Lev Psakhis

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Title Page Key to symbols used Publisher’s Foreword to the Second Edition Preface 1 Attacking in the Benoni 7 Birbrager – Tal, USSR 1953 9 Gurgenidze – Tal, USSR Championship 1957 16 Namgilov – Psa...

Advanced Chess Tactics

By Lev Psakhis

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The complete Benoni

By Lev Psakhis

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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.