Nathan Aaseng Books

Baseball's worst teams

By Nathan Aaseng

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The author profiles what he considers to be the eight worst teams in the history of major league baseball.

Football's most controversial calls

By Nathan Aaseng

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Profiles eight National Football League games in which the officials made controversial calls.

Football's most shocking upsets

By Nathan Aaseng

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Profiles eight championship games in the National Football League, in which superior playing and plain luck resulted in wins for teams expected to lose.

Pro sports' greatest rivalries

By Nathan Aaseng

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Offers profiles of six well-known rivalries between teams in professional football, baseball, basketball, and hockey.

College football's hottest rivalries

By Nathan Aaseng

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Examines the history of six long-standing college football rivalries including Yale vs. Harvard, Army vs. Navy, and Michigan vs. Ohio State.

Football's incredible bulks

By Nathan Aaseng

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Brief biographies of ten star football players noted for their massive size as well as their outstanding athletic skills.

Record breakers of pro sports

By Nathan Aaseng

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Describes how six exceptional athletes challenged the greatest sports records, surpassing marks that had stood for years.

Barry Sanders

By Nathan Aaseng

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Night of Wonder

By Michael L. Sherer, Nathan Aaseng

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Jobs vs. the environment

By Nathan Aaseng

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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.