Jennifer L. Armstrong Books

King Crow

By Jennifer L. Armstrong

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Jailed by an evil foe, a king receives invaluable help from a crow that regularly brings him the latest news.

Foolish Gretel

By Jennifer L. Armstrong

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In 1855 in Galveston, Texas, ten-year-old Gretel and her two spoiled, complaining sisters all hope to be accepted as a companion to Frau Dimpel, the richest German lady in town.

The dreams of Mairhe Mehan

By Jennifer L. Armstrong

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Mairhe, who lives in an Irish slum in Washington, D.C., in the 1860s, struggles to come to grips with the impact of the Civil War on her family.

Patrick Doyle is full of blarney

By Jennifer L. Armstrong

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Nine-year-old Patrick promises his buddies that his baseball hero will come to their playground in Hell's Kitchen, bat for him, and chase the Copperheads out.

Foolish Gretel

By Jennifer L. Armstrong

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In 1855 in Galveston, Texas, ten-year-old Gretel and her two spoiled, complaining sisters all hope to be accepted as a companion to Frau Dimpel, the richest German lady in town.

That terrible baby

By Jennifer L. Armstrong

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Mom blames Eleanor and Mark for making a mess of the house until she finally sees that the real culprit is the baby.

A Three-Minute Speech: Lincoln's Remarks at Gettysburg

By Jennifer L. Armstrong, Jennifer Armstrong

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"Four score and seven years ago...so begins one of the most important speeches in the history of the United States--Abraham Lincoln's Gettysburg Address."

Junior Great Books (Series 4, Book One)

By Madame De Villeneuve, Jennifer L. Armstrong, Agnes Szudek, Langston Hughes, Norma Fox Mazer, Hans Christian Andersen, Philippa Pearce, Ray Bradbury, Alma Flor Ada, Humphrey Harman

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Patrick Doyle is full of blarney

By Jennifer L. Armstrong

Average: 0.00, 0 Ratings

Nine-year-old Patrick promises his buddies that his baseball hero will come to their playground in Hell's Kitchen, bat for him, and chase the Copperheads out.

That terrible baby

By Jennifer L. Armstrong

Average: 0.00, 0 Ratings

Mom blames Eleanor and Mark for making a mess of the house until she finally sees that the real culprit is the baby.

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.