Daniel Keyes Books

Flowers for Algernon

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Until he was thirty-two, Brooklyn-born Charlie Gordon - gentle, amiable, oddly engaging - had lived in a kind of mental twilight. He knew that knowledge itself was important, and he had learned to...

Charlie Gordon is about to embark upon an unprecedented journey. Born with an unusually low IQ, he has been chosen as the perfect subject for an experimental surgery that researchers hope will incr...

Flowers for Algernon

By Daniel Keyes

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From the Publisher: With more than five million copies sold, Flowers for Algernon is the beloved, classic story of a mentally disabled man whose experimental quest for intelligence mirrors that of...

Flowers for Algernon

By Daniel Keyes

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The Minds of Billy Milligan

By Daniel Keyes

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The Fifth Sally: A Novel

By Daniel Keyes

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Flowers for Algernon

By Daniel Keyes

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New Windmills

By Daniel Keyes

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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.