Mark Z. Danielewski Books

The Fifty Year Sword: Deluxe Edition

By Mark Z. Danielewski

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House of Leaves

By Mark Z. Danielewski

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THE MIND-BENDING CULT CLASSIC ABOUT A HOUSE THAT’S LARGER ON THE INSIDE THAN ON THE OUTSIDE • A masterpiece of horror and an astonishingly immersive, maze-like reading experience that redefines the...

Only Revolutions

By Mark Z. Danielewski

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Only Revolutions

By Mark Z. Danielewski

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Sam:They were with us before Romeo & Juliet. And long after too. Because they’re forever around. Or so both claim, carolling gleefully:We’re allways sixteen.Sam & Hailey, powered by an ever-rotatin...

The Whalestoe Letters

By Mark Z. Danielewski

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Between 1982 and 1989, Pelafina H. Lièvre sent her son, Johnny Truant, a series of letters from The Three Attic Whalestoe Institute, a psychiatric facility in Ohio where she spent the final years o...

The Familiar, Volume 2

By Mark Z. Danielewski

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The Familiar, Volume 1 Wherein the cat is found . . . The Familiar, Volume 2 Wherein the cat is hungry . . . From the universally acclaimed, genre-busting author of House of Leaves comes the sec...

The Familiar, Volume 2

By Mark Z. Danielewski

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NATIONAL BEST SELLER From the author of the international best seller House of Leaves and National Book Award–nominated Only Revolutions comes a monumental new novel as dazzling as it is riveting....

The Familiar, Volume 3

By Mark Z. Danielewski

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The Familiar Volume 1 Wherein the cat is found . . . The Familiar Volume 2 Wherein the cat is hungry . . .The Familiar Volume 3 Wherein the cat is blind . . .Released for the summer from the perils...

House of Leaves

By Mark Z. Danielewski

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Only Revolutions

By Mark Z. Danielewski

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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.