Ray A. Williamson Books

Science and technology in historic preservation

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Living the Sky: The Cosmos of the American Indian

By Ray A. Williamson

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They Dance in the Sky

By Ray A. Williamson

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First houses

By Jean Guard Monroe

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Presents a variety of North American Indian creation myths and discusses how the "first houses" described in these myths set the pattern used by the tribes for their own homes and ritual structures.

They Dance in the Sky

By Jean Guard Monroe, Ray A. Williamson

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Living the sky

By Ray A. Williamson

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Optical manufacturing and testing VII

By James H. Burge, Oliver W. Faehnle, Ray A. Williamson

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Commercial Observation Satellites

By John Baker, Ray A. Williamson, Kevin M. O Connell

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Earth Sky

By Ray A. Williamson

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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.