Charles J. Doe Books

The joy of salvation or Salvation sought found and enjoyed

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Illustrative Notes on the Pilgrim s Progress

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The illustrative notes of Rev. Thomas Scott were compiled from the footnotes of an edition of “The Pilgrim’s Progress” published by John B. Perry in 1855. The notes of that two-part edition have be...

Commentary on John Bunyan s The Pilgrim s Progress

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The notes of Rev. Robert Maguire were complied from the footnotes of John Bunyan's The Pilgrim's Progress, an edition published by Cassell, Petter, and Galpin, c. 1863. This companion volume includ...

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.