Ellen Wittlinger Books

Breakers

By Ellen Wittlinger

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Breakers

By Ellen Wittlinger

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Zigzag

By Ellen Wittlinger

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Parrotfish

By Ellen Wittlinger

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Love lies

By Ellen Wittlinger

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When Marisol, a self-confident eighteen-year-old lesbian, moves to Cambridge, Massachusetts to work and try to write a novel, she falls under the spell of her beautiful but deceitful writing teache...

Heart on My Sleeve

By Ellen Wittlinger

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The war between the boys and the girls

By Ellen Wittlinger

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In 1962, when her best friend Lowell begins to hang around new friends who think girls are losers, Juliet, a fearful fifth-grader, teams up with bold, brave Patsy who challenges the boys to a serie...

Blind faith

By Ellen Wittlinger

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While coping with her grandmother's sudden death and her mother's resulting depression and fascination with a spiritualist church, whose ministers claim to communicate with the dead, fifteen-year-o...

Local girl swept away

By Ellen Wittlinger

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In the Cape Cod village of Provincetown, Massachusetts, seventeen-year-old Lorna is swept out to sea, leaving her three best friends to struggle to come to terms with their missing leader and with...

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.