Jennifer A. Nielsen Books

When Nic, a slave in the mines outside of Rome, is forced to enter a sealed cavern containing lost treasures of Julius Caesar, he finds himself in possession of an ancient amulet filled with magic...

Mark of the Thief

By Jennifer A. Nielsen

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Rise of the wolf

By Jennifer A. Nielsen

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Now a driver in the chariot races, Nic is still a target of the Praetors because of the magical amulet he found, and they will do anything to get their hands on it--and meanwhile Atroxia is beginni...

Wrath of the Storm Mark of the Thief Book 3 3

By Jennifer A. Nielsen

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Wrath of the Storm Mark of the Thief 3

By Jennifer A. Nielsen

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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.