Grace Maccarone Books

The Gym Day Winner, Level 1, Preschool-Grade 1

By Grace Maccarone

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During gym at school, Sam always comes in last, but a great basketball shot turns him into the hero of the day.

The Classroom Pet

By Grace MacCarone

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Sam is in charge of taking care of the classroom hermit crab over Christmas vacation, but when he turns his back, the crab disappears.

The First Grade Friends: Lunch Box Surprise

By Grace Maccarone

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Soccer Game un Partido De Futbol Level 1

By Grace Maccarone

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Three Pigs, One Wolf, Seven Magic Shapes

By Grace Maccarone

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Tells the story of three pigs who acquire some magic shapes, which they use for various purposes, some smart and some not so smart. Includes a section with related activities.

Monster math school time

By Grace Maccarone

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From the time they get up at seven in the morning until they go to bed at eight o'clock at night, monsters spend a busy day, especially at school. Includes related activities.

Joe Cool s Big Book of Cool Things to Do

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TV today

By Grace Maccarone

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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.