Christina J. Mugglin Books

The Mother Tongue Student Workbook 1

By George Lyman Kittredge, Christina J. Mugglin, Sarah Louise Arnold, Amy M. Edwards

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Home Geography for Primary Grades with Written and Oral Exercises

By C. C. Long, Christina J. Mugglin, Amy M. Edwards

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The Mother Tongue

By Sarah Louise Arnold, George Lyman Kittredge

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A classic is back. "The Mother Tongue Book II" was first published over one hundred years ago, but the vintage grammar text from George Kittredge and Sarah Arnold has a faithful following, even tod...

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.