Mary Ellen Snodgrass Books

"Money has developed along with society throughout history. In ancient times currency took many forms, including beaver skins and sea salt blocks. As societies advanced technologically and artistic...

World Epidemics

By Mary Ellen Snodgrass

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The chronological entries of this book provide a record of the impact upon human culture of epidemic illness and death throughout history. From the bone deposits suggesting yaws bacteria on a femur...

August Wilson

By Mary Ellen Snodgrass

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"Award-winning African-American playwright August Wilson has created a cultural chronicle of black America through such works as Ma Rainey's Black Bottom, Fences, Joe Turner's Come and Gone, The Pi...

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.