Stephen Wunderli Books

Heartbeat of Halftime

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Thirteen-year-old Wing clings to the dream that his perpetually losing football team can ride an unexpected winning streak to the championship game before his father dies of cancer.

The heartbeat of halftime

By Stephen Wunderli

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Thirteen-year-old Wing clings to the dream that his perpetually losing football team can ride an unexpected winning streak to the championship game before his father dies of cancer.

Little Boo

By Stephen Wunderli

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The leaves fall, the wind blows, and one little pumpkin seed tries unsuccessfully to be scary, until it grows into a pumpkin and Halloween arrives. A pumpkin seed tries unsuccessfully to be scary...

Marty's world

By Stephen Wunderli

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Things get a little crowded in Marty's room when he reflects on the day the earth was born and how God filled the world with living things.

Silent night, holy night

By Stephen Wunderli

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Little Boo

By Stephen Wunderli

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Progressively larger groups of animals try to share a limited number of scooters, cookbooks, nap mats, and underwear. -- publisher.

Little Boo

By Stephen Wunderli

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Progressively larger groups of animals try to share a limited number of scooters, cookbooks, nap mats, and underwear. -- publisher.

The Blue Between the Clouds

By Stephen Wunderli

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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.