Maureen Johnson Books

13 Little Blue Envelopes

By Maureen Johnson Undifferentiated

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The Name of the Star

By Maureen Johnson

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Rory, of Boueuxlieu, Louisiana, is spending a year at a London boarding school when she witnesses a murder by a Jack the Ripper copycat and becomes involved with the very unusual investigation.

The Key to the Golden Firebird

By Maureen Johnson

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As three teenaged sisters struggle to cope with their father's sudden death, they find they must reexamine friendships, lifelong dreams, and their relationships with each other and their father.

The Key to the Golden Firebird

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The Key to the Golden Firebird

By Maureen Johnson

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As three teenaged sisters struggle to cope with their father's sudden death, they find they must reexamine friendships, lifelong dreams, and their relationships with each other and their father.

13 Little Blue Envelopes

By Maureen Johnson

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When seventeen-year-old Ginny receives a packet of mysterious envelopes from her favorite aunt, she leaves New Jersey to criss-cross Europe on a sort of scavenger hunt that transforms her life.

Girl at Sea

By Maureen Johnson

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Girl at Sea

By Maureen Johnson

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The Vanishing Stair Truly Devious Book 2

By Maureen Johnson Undifferentiated

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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.