Shirley Nagel Books

Tree boy

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Relates the successful efforts of teen-age Andy Lipkis to organize a program of planting smog-tolerant trees in the Los Angeles area.

Escape from the Tower of London

By Shirley Nagel

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A mistreated servant girl for the head jailer at the Tower of London becomes involved in the daring escape plot of a prominent prisoner

Escape from the Tower of London

By Rudy Obero, Shirley Nagel

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A mistreated servant girl for the head jailer at the Tower of London becomes involved in the daring escape plot of a prominent prisoner.

Guns for the General Flashback War

By Shirley Nagel

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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.