Kate Messner Books

Marty McGuire

Average: 0.00, 0 Ratings

When tomboy Marty is cast as the princess in the third-grade play, she learns about improvisation, which helps her become more adaptable.

Marty McGuire digs worms

By Kate Messner

Average: 0.00, 0 Ratings

With help from her Grandma Barb, Marty builds a habitat for worms in her school cafeteria as part of the Save the Earth Project.

Marty McGuire digs worms!

By Kate Messner

Average: 0.00, 0 Ratings

With help from her Grandma Barb, Marty builds a habitat for worms in her school cafeteria as part of the Save the Earth Project.

The star spangled setup

By Kate Messner

Average: 0.00, 0 Ratings

When the original Star Spangled Banner is stolen, seventh-graders Anne, José, and Henry, all descendants of the Silver Jaguar Society, pursue suspects on airport carts and through baggage handling...

For five hundred years the Jaguar Cup, sacred to the Silver Jaguar Society, was hidden in a cave on the coast of Costa Rica--so when a fake copy shows up on display in America, it is up to Anne, Jo...

Capture the Flag

By Kate Messner

Average: 0.00, 0 Ratings

Ranger in Time Rescue on the Oregon Trail

By Kate Messner

Average: 0.00, 0 Ratings

Marty Mcguire Has Too Many Pets

By Kate Messner, Brian Floca

Average: 0.00, 0 Ratings

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.