J. C. Greenburg Books

Andrew Lost 1: On the Dog

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When Andrew’s latest invention, the Atom Sucker, goes haywire, Andrew and Judy are shrunk down to microscopic level! Andrew and Judy find themselves lost on their neighbor’s dog, where they encount...

Andrew Lost 2: In the Bathroom

By J. C. Greenburg

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When Andrew and Judy’s neighbor gives her dog a bath, microscopic Andrew and Judy find themselves washed off the dog and lost in the bathroom! They’ll have to use their wits–and Thudd’s storehouse...

Andrew Lost 3: In the Kitchen

By J. C. Greenburg

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Andrew, his cousin Judy, and super-smart robot Thudd escape the bathtub–only to get flushed down the toilet! Now they have to find their way through a maze of pipes to the kitchen sink. But the kit...

Andrew Lost 4: In the Garden

By J.C. Greenburg

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Andrew, his cousin Judy, and super-smart robot Thudd hitch a ride out of the kitchen on the back of a fly and end up in the garden. The view is awfully nice from the head of a daisy, but time is ru...

Andrew Lost 5: Under Water

By J. C. Greenburg

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After getting unshrunk, Andrew, Judy, and Thudd take a much needed vacation to Hawaii. While making modifications to Uncle Al’s latest invention–the submarine-like Water Bug–Andrew ends up strandin...

Andrew Lost 6: In the Whale

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After escaping an underwater volcano, Andrew, Judy, and Thudd drive their submersible vehicle, the Water Bug, right down a whale’s throat!This is the second in a four-book set that will take the ki...

Andrew Lost 9: In Time

By J. C. Greenburg

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The evil Dr. Kron-Tox has kidnapped Uncle Al and whisked him away in his time machine! Luckily, Andrew has a time machine of his own. But like most of Andrew’s inventions, the Time-a-Tron doesn’t w...

Andrew Lost 10: On Earth

By J. C. Greenburg

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Andrew, Judy, and Thudd have escaped the Big Bang only to find themselves trapped inside the Earth as it forms all around them! Meanwhile Uncle Al is stranded in the Ice Age. Somehow Andrew, Judy,...

Andrew Lost 11: With the Dinosaurs

By J. C. Greenburg

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Andrew, Judy, and Thudd have escaped primordial Earth only to find themselves surrounded by huge–and hungry!–dinosaurs. Meanwhile Uncle Al is still stranded in the Ice Age. Somehow Andrew, Judy, an...

Andrew Lost 12: In the Ice Age

By J. C. Greenburg

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Andrew, Judy, and Thudd have escaped the dinosaurs only to find themselves surrounded by the woolly mammoths of the Ice Age! Can they locate their lost Uncle Al and travel back to their own time be...

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.