Sullivan Dan Books

The 21 daytime breakthrough workbook

By Sullivan Dan

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The Laws of Lifetime Growth

By Dan Sullivan, Catherine Nomura

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“If you want to live a life of continual growth, wider impact, greater fulfillment, and unimagined success, read this book!” —Jack Canfield, New York Times-bestselling author of T...

Ren sheng cheng zhang de 10 tang ke

By Sullivan Dan

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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.