Polly Schaafsma Books

Rock art in New Mexico

By Polly Schaafsma

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Indian rock art of the Southwest

By Polly Schaafsma

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Indian Rock Art of the Southwest

By Polly Schaafsma

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New Perspectives on Pottery Mound Pueblo

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Rock Art Of Utah

By Polly Schaafsma

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Over many centuries, the prehistoric Fremont and Anasazi peoples of present-day Utah left an artistic record in which distinctive styles are readily identifiable. From the Uinta Mountains through t...

Kachinas in the Pueblo world

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Rock Art Utah Papers of the Peabody Museum of Archaeology and Ethnology Vol. 65

By Polly Schaafsma

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Rock Art in the Cochiti Reservior District

By Polly Schaafsma

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Rock art in New Mexico

By Polly Schaafsma

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Painting The Cosmos: Metaphor And Worldview In Images From The Southwest Pueblos And Mexico

By Polly Schaafsma, Kelley Hays-Gilpin, Kelley A. Hays-Gilpin, Robert G. Breunig

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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.