Simon Callow Books

Being an actor

By Simon Callow

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Orson Welles, Volume 1: The Road to Xanadu

By Simon Callow

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“A splendidly entertaining, definitive work.”—Entertainment WeeklyIn this first installment of his masterful biography, Simon Callow captures the chameleonic genius of Orson Welles as only an actor...

Orson Welles, Volume 2: Hello Americans

By Simon Callow

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“Unfailingly intelligent and well written . . . Vivid and three-dimensional.”—VarietyThe first volume of Simon Callow's magisterial biography of Orson Welles was praised as a "splendidly entertaini...

Love Is Where It Falls

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Orson Welles

By Simon Callow

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Orson Welles, Volume 2: Hello Americans

By Simon Callow

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Being an actor

By Simon Callow

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Charles Laughton

By Simon Callow

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Charles Laughton

By Simon Callow

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Being an actor

By Simon Callow

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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.