Edwin J. C. Sobey Books

Wrapper Rockets and Trombone Straws: Science at Every Meal

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Investigates science through a variety of activities that can be performed while waiting in restaurants, using such items as eating utensils, straws, salt and pepper, napkins, and place mats.

Car Smarts: Activities for Kids on the Open Road

By Edwin J. C. Sobey

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Suggests a variety of activities to do while on a car trip, including many based on scientific topics such as weather, nature, and how an automobile operates.

Just Plane Smart! Activities for Kids in the Air and on the Ground

By Edwin J. C. Sobey

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Presents activities, riddles, trivia, puzzles and more related to airplane travel.

The Whole Backpacker's Catalog

By Edwin J. C. Sobey

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Fantastic Flying Fun with Science

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Wack Water Fun with Science

By Edwin J. C. Sobey, Ed Sobey

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What's that?

By Edwin J. C. Sobey

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Explores the technology that is seen in such places as roads, airports, and bridges, including deer reflectors, vortex generators, and cable-laying ships.

Wrapper Rockets Trombone Straws

By Edwin J. C. Sobey

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How to enter and win an invention contest

By Edwin J. C. Sobey

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Describes the history and process of invention and lists national middle school and high school level invention contests and entrance rules, regional inventors' clubs, and ideas for projects.

How to Build Your Own Prize Winning Robot Science Fair Success

By Edwin J. C. Sobey

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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.