Timothy Roland Books

Detective Dan and the Puzzling Pizza Mystery

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Detective Dan solves the case of the missing pizza and, with the aid of a Bible verse, helps Bernard understand why he should not tell lies to his friends.

Detective Dan and the Flying Frog Mystery

By Timothy Roland

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Detective Dan finds Farley's missing frog and, with the aid of a Bible verse, helps him understand why seeking revenge is wrong.

A silly science experiment

By Timothy Roland

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Our crazy class election

By Timothy Roland

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While trying to find material for his school newspaper comic strip, fifth-grader Guy Maloney finds himself running for homeroom president against Tank, the school's biggest bully, and Ollie, the sc...

Kooks in the Cafeteria Comic Guy 3

By Timothy Roland

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Monkey Me and the Golden Monkey A Branches Book Monkey Me 1

By Timothy Roland

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Monkey Me and the Pet Show A Branches Book Monkey Me 2

By Timothy Roland

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Monkey me and the new neighbor

By Timothy Roland

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When Clyde gets excited and hyper, he brings a whole new meaning to "monkeying around!." Frustrating his sister with his tendency to transform into a monkey whenever he gets hyper, Clyde is given...

Monkey Me and the New Neighbor A Branches Book Monkey Me 3

By Timothy Roland

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Monkey Me and the School Ghost A Branches Book Monkey Me 4

By Timothy Roland

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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.