Mary Ann Marshall Books

The thinsulin program

By Charles T. Nguyen

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Music

By Mary Ann Marshall

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Describes the skills, training, and performance required for various jobs related to music, including concert promoter, sound engineer, song writer, musician, and band manager.

Thinsulin Program

By Charles Nguyen, Mary Ann Marshall, Tu Nguyen

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Thinsulin Program

By Charles Nguyen, Mary Ann Marshall, Tu Nguyen

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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.