Marion Zimmer Bradley Books

The New York Times bestselling science fiction and fantasy author of the Avalon series introduces the prequel to the beloved and enduring classic The Mists of Avalon in this mesmerizing epic of one...

The gratitude of kings

By Marion Zimmer Bradley

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Lady of Avalon

By Marion Zimmer Bradley

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Journey to a time before King Arthur in this prequel to The Mists of Avalon—a spellbinding story of three remarkable women who alter the fortunes of Roman Britain as they fight to reclaim the magic...

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.