Robert J. Sawyer Books

On the eve of a secret military operation, an assassin’s bullet strikes President Seth Jerrison. He is rushed to the hospital, where surgeons struggle to save his life—and where Professor Ranjip Si...

Red planet blues

By Robert J. Sawyer

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"Robert J. Sawyer, the author of such "revelatory and thought-provoking"* novels as Triggers and The WWW Trilogy, presents a noir mystery expanded from his Hugo and Nebula Award-nominated novella "...

Quantum night

By Robert J. Sawyer

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Experimental psychologist Jim Marchuk has developed a flawless technique for identifying the previously undetected psychopaths lurking everywhere in society. But while being cross-examined about hi...

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.