Hans Rickheit Books

Folly

By Hans Rickheit

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The Squirrel Machine

By Hans Rickheit

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Cochlea Eustachia

By Hans Rickheit

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"Cochlea & Eustachia appear to be twin human girls, but this has yet to be confirmed. Their actions seem to be motivated less by curiosity than boredom and an inclination towards purposeless destru...

Gloaming Issue 2

By Hans Rickheit

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Gloaming Issue 1

By Hans Rickheit

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Comics Journal 301

By Kristy Valenti, Mike Dean, Gary Groth, Hans Rickheit

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The squirrel machine

By Hans Rickheit

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"What is the squirrel machine? Is it a rodent ensnarement device? A mechanism for concealing one's guarded harvest? An anachronistic fable? A meaningless diversion? Set in a fictional 19th Century...

Chloe GN

By Hans Rickheit

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Delia

By Krissy Dorn, Hans Rickheit

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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.