George Harrar Books

Radical Robots Can You be Replaced

By George Harrar

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Not as crazy as I seem

By George Harrar

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As fifteen-year-old Devon begins mid-year at a new prestigious prep school, he is plagued by compulsions such as the need to sort things into groups of four.

Not as crazy as I seem

By George Harrar

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As fifteen-year-old Devon begins mid-year at a new prestigious prep school, he is plagued by compulsions such as the need to sort things into groups of four.

The wonder kid

By George Harrar

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In the summer of 1954, eleven-year-old Jesse James MacLean contracts polio, but with a friend's help and despite his unsympathetic father, he finds ways to prove that his spirit is still strong.

Signs of the apes, songs of the whales

By George Harrar

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Describes experiments in which apes and dolphins have been taught aspects of human language and discusses the contributions of these experiments to our understanding of animal intelligence.

Signs of the apes, songs of the whales

By George Harrar

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Describes experiments in which apes and dolphins have been taught aspects of human language and discusses the contributions of these experiments to our understanding of animal intelligence.

First Tiger

By George Harrar

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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.