John, M.D. Pohl Books

Tenochtitlan

By John M.D. Pohl, Judy Levin

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In the realm of 8 Deer

By Bruce E. Byland

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"A multi-disciplinary approach reinterprets the Mixtec codices and argues that they present a Mixtec history of the political fragmentation that occurred in Oaxaca following Monte Albán's decline....

Las canteras de Mitla, Oaxaca

By Nelly M. Robles Garcia

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"Description of prehispanic quarry sites in the vicinity of Mitla where construction stone was cut and prepared. Includes discussion of technology and petrographic analysis"--Handbook of Latin Amer...

Aztec Warrior

By John Pohl

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Aztecs and Conquistadores

By John Pohl

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Sorcerers of the fifth heaven

By John M. D. Pohl

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Conquistador

By John Pohl

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Armies of Castile and Aragon 1370 1516

By John Pohl, Gerry Embleton

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Armies of Castile and Aragon 1370 1516

By John Pohl, Gerry Embleton

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Armies of Castile and Aragon 1370 1516

By John Pohl, Gerry Embleton

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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.