Mary E. Black Books

New Key to Weaving

By Mary E. Black O.T.R.

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Hopi Dictionary Hopiikwa Lavaytutuveni

By The Hopi Dictionary Project

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This is the first true dictionary of Hopi, containing approximately 30,000 entries. The dictionary is based on the dialect spoken today in villages on Third Mesa and was compiled in consultation wi...

Reining in the Rio Grande

By G. Emlen Hall, Fred M. Phillips, Mary E. Black

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Reining in the Rio Grande

By Fred M. Phillips

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Reining in the Rio Grande

By G. Emlen Hall, Fred M. Phillips, Mary E. Black

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The Key to Weaving: A Textbook of Hand Weaving for the Beginning Weaver

By Mary E. Black

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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.