Jeff Lewis Books

Human Side
Human Side

By Jeff Lewis

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This New Home
This New Home

By Jeff Lewis

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I Hate Math So Much
I Hate Math So Much

By Jeff Lewis

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Theory of Sellativity
Theory of Sellativity

By Jeff Lewis

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Off Grid Living
Off Grid Living

By Jeff Lewis

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Book You Need Before You Buy That Accounting Software
Cassy Kindly and the Naughty Christmas Fairies
Hildy and the Archer
Hildy and the Archer

By Jeff Lewis

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The Guild Volume 2: Knights of Good
The Guild Volume 2: Knights of Good

By Felicia Day Various Artists

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Set before the first season of the show, these hilarious stories delighted fans and newbies alike and introduced plots that influenced the show itself, including season 5's backstory of Tink, origi...

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Related Articles from our Blog

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.

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