Sean Callery Books

Party Games

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From classics such as pass-the-parcel to new ideas for sports day, over 200 fun family and party games are explained. Tired of the same old charades played at every family gathering? Looking for fr...

Codes and Ciphers

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Dictators

By Sean Callery

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How to Read a Building

By Timothy Brittain Catlin

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Arctic Life: Band 04 Blue

By Sean Callery

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Dreams

By Sean Callery

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Codes and Ciphers

By Sean Callery

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The pharaoh's toothache

By Sean Callery

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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.