Thomas D. Clareson Books

Some kind of paradise

By Thomas D. Clareson

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Science Fiction in America 1870s 1930s

By Thomas D. Clareson

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A spectrum of worlds

By Thomas D. Clareson

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The heritage of Heinlein

By Thomas D. Clareson

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"Many believe that Robert A. Heinlein was the most important American science fiction writer of the 20th century. This book looks at each piece of fiction (and a few pieces of sf-related nonfiction...

Extrapolation a Science Fiction Newsletter

By Clareson

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Science fiction criticism an annotated checklist

By Thomas D. Clareson

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Many Futures Many Worlds

By Thomas D. Clareson

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Many futures, many worlds

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Understanding Contemporary American Science Fiction

By Thomas D. Clareson

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Sf the Other Side of Realism

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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.