Carole Hart Books

Delilah

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Ten-year-old Delilah plays basketball with the garbageman, sings with a band in the park, cries when her parents fight, and generally enjoys her life.

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By Norma Klein, Norma Fox Mazer, Carole Hart, Bruce Hart, Katherine Paterson

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Pleasure U

By Carole Hart

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In the hallowed halls of Pleasure U, students dress according to the curriculum, in outfits guaranteed to raise eyebrows and libidos. The elaborately furnished classrooms are set up with one thing...

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.