Susan Beth Pfeffer | ISBNLab.com

A support group of teenagers coping with family problems helps Amy to adjust after she's ordered to live with her mother following the discovery that her divorced father abducted her years ago.

The pizza puzzle

By Susan Beth Pfeffer

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Distracted by her worries that her parents may get a divorce, Taryn gets in trouble with her seventh-grade English teacher and is caught up in an increasingly complicated series of lies.

Justice for Emily

By Susan Beth Pfeffer

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When she refuses to let her friend's death be called an accident, eleven-year-old Emily, an orphan, encounters the ingrained prejudices of the "best" families in town.

Meg's Story

By Susan Beth Pfeffer

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When ten-year-old Meg receives an invitation to a friend's picnic but Jo does not, Meg must decide whether to decline in loyalty to her sister or to follow her heart and attend.

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.

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