John Sack Books

Love on a Rusty Spur
Love on a Rusty Spur

By John Sack

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Spisek Franciszkanw
Spisek Franciszkanw

By John Sack

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La Conspiracion De Asis
La Conspiracion De Asis

By John Sack

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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...

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Ascent of Yerupaja
Ascent of Yerupaja

By John Sack

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Leaving My Broken House
Leaving My Broken House

By John Sack

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Angel s Passage
Angel s Passage

By John Sack

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Franciscan Conspiracy: Library Edition
Views of the Moon
Views of the Moon

By John Sack

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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.

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