David Nolan Books

Game of thrones

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Game of Thrones is easily the most intriguing and captivating TV series today. It is no surprise that it is the most talked about and the biggest show since the Sopranos finale If you're new to the...

The Houses of St. Augustine

By David Nolan

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When the Pilgrims landed at Plymouth Rock, St. Augustine was already half a century old. Founded in 1565, the city has been continuously inhabited ever since, and its architectural styles tell stor...

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.