Erin O Connor Books

Documenting Latin America: Gender, Race and Empire, Vol. 1

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'Documenting Latin America' focuses on the central themes of race, gender, and politics. Documentary sources provide readers with the tools to develop a broad understanding of the course of Latin A...

Gender Indian Nation

By Erin O Connor

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Mothers making Latin America

By Erin O Connor

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Mothers making Latin America

By Erin O Connor

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101 math jokes

By Erin O Connor

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Calling all math-letes and math geeks: Yes, the whole idea of math jokes might seem a little strange, but these are really two funny -- in fact they are prime. Go figure!

Starry Night College Activities Workbook CD-ROM

By Erin O Connor

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Starry NightTM Activity Workbook

By Erin O Connor

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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.