Holly Black Books

Valiant

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Seventeen-year-old Val runs away to New York City where she falls in with a gang of squatters who live in the city's subway system and consort with fairies, trolls, and other strange creatures.

The nixie s song

By Holly Black, Tony DiTerlizzi

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Eleven-year-old Nicholas Vargas only thinks his life has been turned upside down after his developer father remarries and moves his new wife and daughter into the soon-to-be completed Mangrove Holl...

A giant problem

By Holly Black, Tony DiTerlizzi

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As giants start waking up and destroying everything around their Florida neighborhood, Nick, Laurie, Jules, and Cindy work frantically to find a solution.

Beyond the Spiderwick Chronicles

By Tony DiTerlizzi

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Nick, Julie, Laurie, and their friends try to prevent a hydra from destroying Florida.

Spiderwick Box Set

By Holly Black

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Valiant

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Valiant

By Holly Black

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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.