Susan Heyboer O Keefe Books

Un Esperpento Hambriento

By Susan Heyboer O Keefe

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A season for giving

By Susan Heyboer O Keefe

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When ten-year-old Allie, a Catholic, and his new friend Zeke, a Jewish boy, start to explain to each other the significance of Christmas and Hanukkah, the situation gives birth to a special shared...

A bug from Aunt Tillie

By Susan Heyboer O Keefe

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Eight-year-old Joey thinks of Great Aunt Tillie as too old and too boring to have around, until she surprises him on his birthday by revealing aspects of her character he never suspected.

Who will miss me if I don't go to church?

By Susan Heyboer O Keefe

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A young child realizes that attendance at church makes a difference to many people--and to God.

Countdown to Christmas

By Susan Heyboer O Keefe

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A collection of daily scripture readings, meditations, prayers, and activities for Advent and Christmas.

It s Great to Be Catholic

By Susan Heyboer O Keefe

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What Does a Priest Do What Does a Nun Do

By Susan Heyboer O Keefe

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Living the Days of Advent and the Christmas Season 2009

By Susan Heyboer O Keefe

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Good night, God bless

By Susan Heyboer O Keefe

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A child's goodnight prayer, encompassing familiar objects and people.

Be the Star That You Are

By Susan Heyboer O Keefe

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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.