Ryan Holiday Books

Growth Hacker Marketing

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A primer on the future of PR, marketing and advertising — now revised and updated with new case studies"Forget everything you thought you knew about marketing and read this book. An...

Ego Is the Enemy

By Ryan Holiday

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The instant Wall Street Journal, USA Today, and international bestseller“While the history books are filled with tales of obsessive visionary geniuses who remade the world in their image with...

Tools of Titans

By Mike Del Ponte, Kaleo Griffith, Tim Kreider, Tim Ferriss, Jocko Willink, Ray Porter, Therese Plummer, Ryan Holiday, Kevin Rose

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Trust Me I m Lying Paperback Jan 01 2018 Ryan Holiday

By Ryan Holiday

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The Daily Stoic Journal

By Ryan Holiday, Stephen Hanselman

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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.