Jason C. Eckhardt Books

The Compact Trail of Tsathoggua Call of Cthulhu Role Playing Game Series

By Keith Herber

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Paisano Pete

By Marilyn Gilbert Komechak

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After doing a science project studying and videotaping the activities of a roadrunner, Kelley finds herself the protector of his chick, a rare white roadrunner she calls Starlight.

Mystery at Saddlecreek

By Marcia Allen Bennett

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When thirteen-year-old Mike is suspected of vandalism near the family's Texas home, he, his twin Hannah, and their friends, determine to find the real culprit in order to clear Mike's name.

The legend of Crystal Lake

By Sally A. Roberts

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In the early 1800s, after the death of her mother, Sarah, her father and sister travel from their home in England to Texas, where she tends to her beloved swans and helps in the fight for Texas' in...

Mystery at Jacob's Well

By Marcia Allen Bennett

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Thirteen-year-old twins Mike and Hannah, along with their friends, try to ignore stories about local ghosts when they explore an area in Texas near a strange well which covers deadly underground ca...

Tango with a Puma

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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.