George Bernard Shaw Books

Exclusive to Penguin Classics: the definitive text of Shaw’s brilliantly witty exposure of the British class system—part of the official Bernard Shaw LibraryA Penguin ClassicShaw wrote the part of...

Caesar and Cleopatra

By George Bernard Shaw

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Exclusive to Penguin Classics: the definitive text of one of Shakespeare’s most affecting plays—part of the official Bernard Shaw LibraryA Penguin ClassicIn a cheeky nod to Shakespeare’s towering r...

Candida

By George Bernard Shaw

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Exclusive to Penguin Classics: the definitive text of the play that jumpstarted Shaw’s career as a dramatist—part of the official Bernard Shaw LibraryA Penguin ClassicThe Reverend Morell, a sociali...

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.