William J. Comer Books

Art of Teaching Russian

By Irina Dubinina, William J. Comer, Christine M. Campbell, Cori Anderson

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Art of Teaching Russian

By Lynne DeBenedette, William J. Comer, Christine M. Campbell, Cori Anderson, Evgeny Dengub

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Homework Activities for Mezhdu Nami

By Lynne DeBenedette, William J. Comer, Alla Smyslova

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This volume provides listening and written homework activities for introductory Russian programs using the first five units of the online textbook Mezhdu nami (mezhdunami.org).

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.