Hollow Strength is also available for purchase in paperback from Amazon.
If you are interested in supporting an independent online retailer, you can purchase Hollow Strength in all formats from Full Sail Books
Customized signed copies are available if you contact the author directly for $20 dollar plus shipping in the Continental United States.
If you want to read Hollow Strength on an I-Pad and have I-Books, you will want to purchase the Barnes and Noble (EPub) version. If you don't have I-Books on your I-Pad, you can click HERE to download it. Or you can read the Kindle version if you upload this free Kindle for I-Pad software to your I-Pad.