Adam Sisman Books

The Friendship: Wordsworth and Coleridge

By ADAM SISMAN

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John le Carre

By Adam Sisman

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"In this definitive biography Adam Sisman reveals the man behind the bestselling persona. In John le Carré, Sisman shines a spotlight on David Cornwell, an expert at hiding in plain sight. Of cours...

John le Carre

By Adam Sisman

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Boswell's presumptuous task

By Adam Sisman

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Boswell's Presumptuous Task: The Making of the Life of Dr. Johnson

By Adam Sisman

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The Friendship

By Adam Sisman

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One Hundred Letters From Hugh Trevor-Roper

By H. R. Trevor Roper

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A carefully chosen selection from the correspondence of Hugh Trevor-Roper, one of the most gifted and famous historians of his generation and one of the finest letter-writers of the 20th century.

Boswell's presumptuous task

By Adam Sisman

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Hugh Trevor-Roper: The Biography

By Adam Sisman

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John le Carre

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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.