Eric B. Sondheimer Books

College football s most memorable games

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"Presented here are 60 games featuring some of the most outstanding efforts in history--dramatic comebacks, stunning upsets, great individual efforts, and bizarre plays. Each story includes highlig...

College Football s Most Memorable Games 2d Ed

By Fred Eisenhammer, Eric B. Sondheimer

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College football's most memorable games, 1913 through 1990

By Fred Eisenhammer

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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.