Susan Heyboer O Keefe Books

Death by Eggplant

By Susan Heyboer O Keefe

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Hungry Monster ABC: An Alphabet Book

By Susan Heyboer O Keefe

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Hungry Monster ABC: An Alphabet Book

By Susan Heyboer O Keefe

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When a child tries to teach the alphabet to ten insatiable monsters, things quickly get out of hand and chaos abounds until the teacher returns with just the right threat to chase them all away.

One Hungry Monster: A Counting Book in Rhyme Board Book

By Susan Heyboer O Keefe

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At bedtime a small boy tries to control ten insatiable monsters demanding food and creating chaos throughout the house.

One hungry monster

By Susan Heyboer O Keefe

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At bedtime a small boy tries to control ten insatiable monsters demanding food and creating chaos throughout the house.

One Hungry Monster

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.

One hungry monster

By Susan Heyboer O Keefe

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At bedtime a small boy tries to control ten insatiable monsters demanding food and creating chaos throughout the house.

One Hungry Monster

By Susan Heyboer O Keefe

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It s Great to Be Catholic

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.