Mark Olshaker Books

C. J. Peters has been on the front lines of our biological battle against "hot" viruses around the world for three decades. In the course of that career he has learned countless lessons about our i...

Virus Hunter

By C.J. Peters

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A New York Times Notable Book The man who led the battle against Ebola in The Hot Zone teams up with the bestselling co-author of Mind Hunter to chronicle his extraordinary thirty-year career fig...

The Edge

By Mark Olshaker

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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.