Mark Geller Books

Who's on First?

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When fourteen-year-old Alex involves himself in his older sister's love life, he almost ruins her chance at true happiness.

The Strange Case of the Reluctant Partners

By Mark Geller

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Thomas is dismayed by a seventh grade English assignment requiring him and the intelligent and unusual Elaine to write biographies of each other, but they soon become good friends.

When thirteen-year-old Michael, home sick from school, answers a telephone call meant for his father's ears only, his family security is threatened as he faces the reality of his parents' relations...

What I Heard

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Raymond: A Novel

By Mark Geller

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After years of abuse from his father, thirteen-year-old Raymond tries to put his life in order by leaving home, and wishes his abused mother would come too.

Raymond

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Raymond

By Mark Geller

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Tim Sweeney's guide to releasing independent records

By Tim Sweeney

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Raymond Cuatro Vientos

By Mark Geller

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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.