Jen Widerstrom Books

Diet right for your personality type

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"Health and fitness expert Jennifer Widerstrom has learned one important thing through her work with contestants on NBC's The Biggest Loser and her clients who have collectively lost thousands of p...

Diet Right for Your Personality Type

By Jen Widerstrom

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Health and fitness expert Jen Widerstrom learned one important thing about weight-loss success through years of working with her clients and now contestants on NBC's The Biggest Loser: when it come...

Logical Lifestyle

By Layne Norton, Jen Widerstrom, Tyler Kelly

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Diet Right for Your Personality Type

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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.