Ryan Holiday Books

La llamada del coraje

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An influential media strategist reveals how blogs are controlling the news in the digital age and exposes the ways in which today's marketers are manufacturing news stories, affecting stock prices,...

Ryan Holiday 4 Books Collection Set

By Ryan Holiday

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The Daily Stoic Journal

By Ryan Holiday, Stephen Hanselman

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A beautiful daily journal to lead your journey in the art of living--and an instant WSJ bestseller! For more than two thousand years, Stoic philosophy has been the secret operating system of wise l...

Lives of the Stoics

By Ryan Holiday, Stephen Hanselman

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Instant New York Times Advice & Business Bestseller, USA Today Bestseller, and Wall Street Journal #1 Bestseller!A New York Times Noteworthy Pick and a "stellar work" by Publishers WeeklyFrom the b...

Lives of the Stoics

By Ryan Holiday, Stephen Hanselman

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The Way, the Enemy, and the Key

By Ryan Holiday

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A timeless trilogy of the extraordinary bestsellers The Obstacle is the Way, Ego is the Enemy, and Stillness is the Key by Ryan Holiday, available in a beautiful boxed set edition.  This is th...

Right Thing, Right Now

By Ryan Holiday

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In his New York Times bestselling book, Discipline Is Destiny, Ryan Holiday made the Stoic case for a life of self-discipline. In this much-anticipated third installment in the Stoic Virtues series...

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.