Jennifer Castle Books

You look different in real life

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"Five teens starring in a documentary film series about their ordinary lives must grapple with questions of change and identity under the scrutiny of the camera"--

What Happens Now

By Jennifer Castle

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Ari, working to overcome depression, enters into a summer romance with Camden, a boy she has long admired from afar.

This Immeasurable Place

By Blake Spalding Jennifer Castle Lavinia Spalding

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The Aristokittens 3: The Fantastic Rabbit Race

By Jennifer Castle

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Together at Midnight

By Jennifer Castle

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Butterfly Wishes Bind up Books 1 3 The Wishing Wings Tiger Streak s Tale Blue Rain s Adventure

By Jennifer Castle

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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.