John A. Hodgson Books

Frankenstein 2e and Tess of the D Urbervilles and Sherlock Holmes

By Arthur Conan Doyle, Mary Shelley, John Paul Riquelme, John A. Hodgson, Johanna M. Smith, Thomas Hardy

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Sherlock Holmes Dracula Wuthering Heights 2e Jane Eyre

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Wordsworth's philosophical poetry, 1797-1814

By John A. Hodgson

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Richard Potter

By John A. Hodgson

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Apart from a handful of exotic--and almost completely unreliable--tales surrounding his life, Richard Potter is almost unknown today. Two hundred years ago, however, he was the most popular enterta...

Sherlock Holmes House of Mirth Adventures of Huck Finn 2e Heart of Darkness 3e CSCC

By John A. Hodgson, Ross C. Murfin, Edith Wharton, Phelan James, Arthur Conan Doyle, Bernard Benstock, Joseph Conrad, Mark Twain, Garrett M. Graff

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Sherlock Holmes

By Doyle A. Conan, John A. Hodgson

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Richard Potter

By John A. Hodgson

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Richard Potter

By John A. Hodgson

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Coleridge, Shelley, and transcendental inquiry

By John A. Hodgson

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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.