David Seigerman Books

Long before he was sacking quarterbacks, Tamba Hali was facing bigger challenges. Learn about his life in this second book in a brand-new nonfiction series about the childhoods of your favorite ath...

Tamba Hali

By David Seigerman

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Take your eye off the ball playbook edition

By Pat Kirwan

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Under pressure

By Ray Lucas

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In Under Pressure, Ray Lucas provides fans with a timely, uncensored look at pro football's play-at-all-costs culture. Overcoming questions about his size and skills as a quarterback, Lucas perseve...

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.