Kathleen Tynan Books

Profiles

By Kenneth Tynan

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The summer aeroplane

By Kathleen Tynan

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Agatha

By Kathleen Tynan

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Kenneth Tynan Letters

By Kenneth Tynan

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Agatha

By Kathleen Tynan

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Agatha Christie disappears in the midst of marital problems. She is found in a hotel registered under the name of her husband's mistress and cannot remember anything.

Agatha

By Kathleen Tynan

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The Life of Kenneth Tynan

By Kathleen Tynan

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K. Tynan

By Kathleen Tynan

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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.