Rob Walling Books

The 7 Day Startup

By Dan Norris, Rob Walling

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SaaS Playbook

By Jason Cohen, Jessie Kwak, Rob Walling

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The SaaS Playbook

By Jason Cohen, Jessie Kwak, Rob Walling

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Start Small Stay Small

By Mike Taber, Rob Walling

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The Entrepreneur's Guide to Keeping Your Sh t Together

By Rob Walling, Sherry Walling

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Learn how to stay sane and ensure both you and your business thrive for years. You run a business. And running a business is hard. It can ruin your health. It can ruin your relationships. It can ru...

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.