Kortepeter P. F. Books

Holly Pond Hill: The Hugs and Kisses Contest

By Paul Kortepeter, Kortepeter P. F.

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Holly Pond Hill: A Child's Book of Christmas

By Paul Kortepeter, Kortepeter P. F.

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"Susan Wheeler's charming images of Holly Pond Hill are paired here with ten poems that capture all the warmth and joy of the Christmas season."

Oliver's Red Toboggan

By Paul Kortepeter, Kortepeter P. F.

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While quarrelling over who gets to use a new red toboggan, Oliver and his sister Emily learn a lesson in sharing.

Oliver s red toboggan

By Kortepeter P. F.

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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.