Christopher Harbo Books

Jack and Jill flip side rhymes

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"Color illustrations and simple text give the original Jack and Jill nursery rhyme, along with a fractured version from the perspective of the Jill"--

Little Miss Muffet Flip Side Rhymes

By Christopher Harbo

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Jack and Jill flip-side rhymes

By Christopher L. Harbo

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"Color illustrations and simple text give the original Jack and Jill nursery rhyme, along with a fractured version from the perspective of the Jill"--

Jack and Jill flip-side rhymes

By Christopher L. Harbo

Average: 0.00, 0 Ratings

"Color illustrations and simple text give the original Jack and Jill nursery rhyme, along with a fractured version from the perspective of the Jill"--

Humpty Dumpty Flip Side Rhymes

By Christopher Harbo

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Little Miss Muffet Flip Side Rhymes

By Christopher Harbo

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Jack and Jill flip-side rhymes

By Christopher L. Harbo

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"Color illustrations and simple text give the original Jack and Jill nursery rhyme, along with a fractured version from the perspective of the Jill"--

Origami Papertainment

By Christopher L. Harbo

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"Provides instructions and photo-illustrated step diagrams for folding a variety of traditional and original origami models"--

Easy Origami Decorations

By Christopher L. Harbo

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Handcrafted decorations are just a few folds away! Learn how to turn origami butterflies, swans, and tulips into locker magnets, table decorations, and more.

Easy Origami Ornaments

By Christopher Harbo

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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.