Mark O Sullivan Books

Wash Basin Street Blues

By Mark O Sullivan

Average: 0.00, 0 Ratings

More Than a Match

By Mark O Sullivan

Average: 0.00, 0 Ratings

Angels without wings

By Mark O Sullivan

Average: 0.00, 0 Ratings

When, in 1934 Germany, the books of a popular children's author are burned and he is sent to prison, the four teenaged heroes of his stories come to life and try to save their creator from the Nazi...

White Lies

By Mark O Sullivan

Average: 0.00, 0 Ratings

Silent stones

By Mark O Sullivan

Average: 0.00, 0 Ratings

Two troubled teenagers in Ireland, the orphaned son of an IRA member and the daughter of New Age wanderers, are forced to come to terms with their own and their families' pasts when an ex-IRA terro...

Enright

By Mark O Sullivan

Average: 0.00, 0 Ratings

Melody for Nora

By Mark O Sullivan

Average: 0.00, 0 Ratings

What Works at Work

By Mark O Sullivan

Average: 0.00, 0 Ratings

Sleeping dogs

By Mark O Sullivan

Average: 0.00, 0 Ratings

Sleeping dogs

By Mark O Sullivan

Average: 0.00, 0 Ratings

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.