Lee Nielsen Books

Claws and Effect

By Lee Nielsen, Chris Kientz Steve Hockensmith

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In the second graphic novel of the Secret Smithsonian Adventures series, our heroes intervene to save the National Museum of Natural History from villains who want to bring dinosaurs back to life...

Crimson Clover

By Patricia Hester, Lee Nielsen

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The Wrong Wrights

By Lee Nielsen, Chris Kientz Steve Hockensmith

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The first graphic novel of the Secret Smithsonian Adventures series. Our heroes intervene to save the National Air and Space Museum from Wright brothers interlopers!Schoolmates Dominique, Eric, Jos...

It's Treason, by George!

By Lee Nielsen, Chris Kientz Steve Hockensmith

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In the third graphic novel of the Secret Smithsonian Adventures series, our heroes visit the National Museum of American History and realize that someone is trying to turn America from a democracy...

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.