Todd McCaffrey Books

With a cast of beloved characters from previous Pern novels, Dragongirl is another triumph for Todd McCaffrey—and a riveting chapter for the Dragonriders of Pern. Young Fiona, rider of the gold que...

Dragonsblood

By Todd McCaffrey

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“This is Pern, in the hands of a new master-grade harper. . . . May the saga continue!” —David Weber, New York Times bestselling author of The Shadow of Saganami A mysterious epidemic is striking d...

Dragon's Time

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NEW YORK TIMES BESTSELLER Even though Lorana cured the plague that was killing the dragons of Pern, sacrificing her queen dragon in the process, the devastating disease has left too few dragons...

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.