Leah Feldon Books

Dress Like a Million On Considerably Less

By Leah Feldon

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Does This Make Me Look Fat

By Leah Feldon, Leigh Ann Davis

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Perfect Balance

By Leah Feldon, Robert A. Greene M.D.

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In this breakthrough book, world-renowned hormone specialist Dr. Robert Greene explores the connection between two of the least understood—and yet most important—physiological factors:...

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.