David Levithan Books

The lover's dictionary

By David Levithan

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Are We There Yet?

By David Levithan

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Nick & Norah's Infinite Playlist

By David Levithan, Rachel Cohn

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High school student Nick O'Leary, straight member of a homosexual rock band, meets college-bound Norah Silverberg and asks her to be his girlfriend for five minutes in order to avoid his ex-sweethe...

Boy Meets Boy

By David Levithan

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The Realm of Possibility

By David Levithan

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A variety of students at the same high school describe their ideas, experiences, and relationships in a series of interconnected free verse stories.

Are We There Yet?

By David Levithan

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Love Is the Higher Law

By David Levithan

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Every Day

By David Levithan

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The Mummy: A Junior Novelization

By David Levithan

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Answers in the Pages

By David Levithan

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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.