Brian Senior Books

Master Pairs Technique Mini masters

By Senior, Brian Senior

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Over Your Shoulder

By Tony Forrester, Brian Senior

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Step By Step Card Play in Suits Batsford Bridge

By Brian Senior

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The Batsford Book of Bridge

By Tony Sowter, Brian Senior

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Competitive Bidding (How To Play Bridge)

By Brian Senior

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The "How to Play Bridge" series provides a complete course of systematic home instruction for the beginner or aspiring player of any age. Each volume is imaginatively designed in two colours throug...

Great Bridge Players How to Play Bridge

By Brian Senior

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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.