Warshawsky Books

Spectrum: A Communicative Course In English-Level Five

By DAVID, Rein, Sandra Costinett, Nancy, Warshawsky, Donald R. H. Byrd, Diane Warshawsky, David P. Rein, Anna Veltfort, Diane, Frankfort

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The series features a carefully sequenced, systematic presentation of grammar and a comprehensive coverage of all four skills.-- Functions, themes, language, and structures are recycled in fully il...

Spectrum: A Communicative Course In English-Level Two

By Joan Dye, DAVID, Rein, Sandra Costinett, Nancy, Warshawsky, Donald R. H. Byrd, Diane Warshawsky, David P. Rein, Nancy Frankfort, Diane, Sharon Abrams, Frankfort

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Spect Sb And Wrkbk Level3 Pk

By Sandra Costinett, Warshawsky, Costinett, Donald R. H. Byrd, Diane Warshawsky

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With All My Heart With All My Soul With And With All My Might

By Sidney, Warshawsky, Sidney Warshawsky

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It All Adds Up

By Warshawsky

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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.