Daniel Polansky Books

M is an ageless drifter with a sharp tongue, few scruples, and the ability to bend reality to his will, ever so slightly. He's come back to New York City after a long absence, and though he'd much...

City Dreaming

By Daniel Polansky

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March's End

By Daniel Polansky

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March's End is a multi-generational portal fantasy of strange magics, epic warfare, and deadly intrigue, in which the personality conflicts and toxic struggles of the Harrow family are reflect...

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.