Christine Heppermann Books

Ask me how I got here

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Addie has always known what she was running toward. In cross country, in life, in love. Until she and her boyfriend her sensitive, good-guy boyfriend are careless one night and she ends up pregnant...

Ask Me How I Got Here

By Christine Heppermann

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What Goes Up

By Christine Heppermann

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What Goes Up

By Christine Heppermann

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Sadie s Story

By Ron Koertge, Deborah Marcero, Christine Heppermann

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Jess s Story

By Ron Koertge, Deborah Marcero, Christine Heppermann

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Maya s Story Backyard Witch

By Ron Koertge, Christine Heppermann

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Poisoned Apples

By Christine Heppermann

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City Chickens

By Christine Heppermann

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City chickens

By Christine Heppermann

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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.