Science Bob Pflugfelder Books

Nick and Tesla's Secret Agent Gadget Battle

By Science Bob Pflugfelder, Steve Hockensmith

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After foiling a gang of kidnappers and fending off an army of robots, 11-year-old siblings Nick and Tesla Holt could use a little rest! But as their third mystery opens, they discover there’s...

Nick and Tesla's Super-Cyborg Gadget Glove

By Science Bob Pflugfelder, Steve Hockensmith

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Einstein is running amok! Darwin is losing his head! The science museum in Half Moon Bay is in big trouble because its robotic replicas of history’s greatest scientists keep go...

Nick and Tesla s High Voltage Danger Lab

By MacLeod Andrews, Science Bob Pflugfelder, Steve Hockensmith

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Nick and Tesla and the High-Voltage Danger Lab

By Science Bob Pflugfelder, Steve Hockensmith

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Nick and Tesla are bright 11-year-old siblings with a knack for science, electronics, and getting into trouble. When their parents mysteriously vanish, they’re sent to live with their Uncle N...

Nick and Tesla's Robot Army Rampage

By Science Bob Pflugfelder, Steve Hockensmith

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Join twins Nick and Tesla as they build homemade robots and race to solve a mystery in this zany, action-packed middle grade adventure sequel by “Science Bob” Pflugfelder.It’s up...

Nick and Tesla's Solar-Powered Showdown

By Science Bob Pflugfelder, Steve Hockensmith

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Kid inventors Nick and Tesla Holt have outsmarted crooks, spies, and kidnappers. Now they have to crack their biggest mystery yet: Where the heck are their parents? To outwit the criminal mastermin...

Nick and Tesla and the High-Voltage Danger Lab

By Science Bob Pflugfelder, Steve Hockensmith

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Solve mysteries using DIY science projects with twin sleuths Nick and Tesla in this zany, action-packed middle grade adventure by "Science Bob" Pflugfelder!Summer break is about to get we...

Nick and Tesla and the Robot Army Rampage

By Science Bob Pflugfelder, Steve Hockensmith

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Join twins Nick and Tesla as they build homemade robots and race to solve a mystery in this zany, action-packed middle grade adventure sequel by “Science Bob” Pflugfelder.It’s up...

Nick and Tesla and the Secret Agent Gadget Battle

By Science Bob Pflugfelder, Steve Hockensmith

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Uncover a secret agent and build spy gadgets with twin sleuths Nick and Tesla in this zany, action-packed middle grade adventure by “Science Bob” Pflugfelder!After rescuing a kidnapped...

Nick and Tesla and the Super-Cyborg Gadget Glove

By Science Bob Pflugfelder, Steve Hockensmith

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Build a super-cyborg gadget glove and save the science museum with twin sleuths Nick and Tesla in this zany, action-packed middle grade adventure by “Science Bob” Pflugfelder!Just like...

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.