Robert Keeshan Books

Although nine-year-olds Murray and Henrietta usually take life slowly in a society where others rush, they know that some things must be done quickly if the environment is to be protected.

Alligator in the basement

By Robert Keeshan

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A boy discovers the power of imagination when he visits his grandfather and meets the alligator that lives in the washing machine.

Good Morning Captain 50 Wonderful Years With Bob Keeshan

By Bob Keeshan, Cathryn Long, Robert Keeshan

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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.