William T. Tardy Books

Easy Spanish Reader

By William T. Tardy

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Easy Spanish Reader Premium, Third Edition: A Three-Part Reader for Beginning Students 160 Minutes of Streaming Audio

By William T. Tardy

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Enhance your Spanish reading skills with this primer for premium results! Easy Spanish Reader Premium is based on the premise that the best way to learn a language is to start reading it, immediate...

Don Quijote de la Mancha Adapted for Intermediate Students

By William T. Tardy, McGraw Hill

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Asi Leemos

By William T. Tardy

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Tres Novelas Latinoamericanos

By W. Tardy, William T. Tardy

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Easy Spanish reader

By William T. Tardy, McGraw Hill

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A beginning textbook divided into three sections which center on different themes and include reading selections, vocabulary lists, grammar, and exercises.

Tres Novelas Espanolas

By William T. Tardy

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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.