Guy Gavriel Kay Books

The Darkest Road

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Five men and women from our world face a battle with an evil beyond imagining in the deeply moving conclusion to Guy Gavriel Kay’s acclaimed Fionavar Tapestry.As the Unraveller’s armies...

A Song for Arbonne

By Guy Gavriel Kay

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From the critically-acclaimed author of The Fionavar Tapestry comes an epic fantasy novel of love, both courtly and forbidden, and two kingdoms endlessly opposed...Blaise of Gorhaut is a warrior. H...

The Last Light of the Sun

By Guy Gavriel Kay

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A powerful, moving saga evoking the Celtic, Anglo-Saxon and Norse cultures of a thousand years ago from the acclaimed author of The Fionavar Tapestry.“A historical fantasy of the highest orde...

Written on the Dark

By Guy Gavriel Kay

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From the internationally bestselling author of Tigana, All the Seas of the World, and A Brightness Long Ago comes a sweeping new novel of love and war that brilliantly evokes the drama and turbulen...

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.