Mark Bertolini Books

Mission-Driven Leadership

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In Mission-Driven Leadership, Mark Bertolini, the long-time chairman and CEO of Aetna, the Fortune 500 health insurance company, reveals that genuine leadership is not about dollars and market shar...

Out of the Blue

By Mark Bertolini, Joe Badon, Corey Fryia, Chas Pangburn, Kelly Williams, Marta Tanrikulu

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Imaginary Drugs

By Christine Larsen, Mark Bertolini, Jonathan Brandon Sawyer, Michael McDermott, Shawn Aldridge, Jeff McClelland

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Caliber Presents

By Mark Bloodworth, Mark Bertolini, E. Mayen Briem, Ben Sherrill, Renton Hawkey, Sam Costello, Joe Pruett, Gary Reed, Alex Sheikman, Ken Meyer Jr.

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Long Gone

By Mark Bertolini, Ted Pogorzelski

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Argus Volume 1

By Mark Bertolini, Nicole D Andria, Darryl Knickrehm

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Bigfoot Frankenstein Book 1

By Mark Bertolini, Vernon Smith, Kai Teng

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Caliber Presents Volume 2

By Mark Bertolini, E. Mayen Briem, Gary Scott Beatty

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Knowledge

By Mark Bertolini, Jerome Eyquem

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Scum of the Earth

By Mark Bertolini, Rob Croonenborghs

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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.