Mary Ann Littell Books

Speed and Methamphetamine Drug Dangers

By Mary Ann Littell

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Lsd The Drug Library

By Mary Ann Littell

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Drug Library Series

By Paul R. Robbins, Mary Ann Littell, Geraldine Woods

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Heroin drug dangers

By Mary Ann Littell

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Discusses the dangers of using heroin, its resurgence in popularity in the 1990s, some famous people who have died from heroin overdoses, and how to get help if you have a problem.

LSD

By Mary Ann Littell

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Looks at the history of the hallucinogenic drug LSD and its societal and physical effects.

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.