John R. Sack Books

Wolf in Winter
Wolf in Winter

By John R. Sack

Average: 0.00, 0 Ratings

Read More
Franciscan Conspiracy Book One of the Duecento Novels
La Conspiracion De Asis
La Conspiracion De Asis

By John Sack

Average: 0.00, 0 Ratings

Setecientos años atrás la jerarquía eclesiástica ocultó al mundo el cuerpo de San Francisco.¿Cuál es el secreto que se llevó el santo a la tumba? En el año 1230, unos monjes roban los restos de...

Read More
Mystic Mountain
Mystic Mountain

By John R. Sack

Average: 0.00, 0 Ratings

Read More
Bloodbrother Bear
Bloodbrother Bear

By John R. Sack

Average: 0.00, 0 Ratings

Read More
Trappist Tales
Trappist Tales

By John R. Sack

Average: 0.00, 0 Ratings

Read More
Angel s Passage
Angel s Passage

By John Sack

Average: 0.00, 0 Ratings

Read More
Great Blues
Great Blues

By John R. Sack

Average: 0.00, 0 Ratings

Read More
Entering BASIC
Franciscan Conspiracy: Library Edition

Related Articles from our Blog

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.

Read More