Evan Kuhlman Books

Perfect for reading aloud, this spare, charming picture book about a day in the life of a pill bug in suburbia is also about an unusual friendship. Hank is a pill bug with a busy life—for a pill bu...

Hank s Big Day

By Evan Kuhlman

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The last invisible boy

By Evan Kuhlman

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In the wake of his father's sudden death, twelve-year-old Finn feels he is becoming invisible as his hair and skin become whiter by the day, and so he writes and illustrates a book to try to unders...

Great Ball of Light

By Evan Kuhlman

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Kansas State University

By Evan Kuhlman

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Simmons College

By Evan Kuhlman

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Gorunmez Cocuk

By Evan Kuhlman

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Hank's Big Day

By Chuck Groenink, Evan Kuhlman

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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.