Patmos Heli Photo 45 pages, Greek text, extensive pictures
A picture book, with brief text, this guide takes you inside the various monasteries and churches of Patmos. It offers a large, well shot picture or two from each one. The photos are stunning, and they show off the stunning interiors as well. The art of the Patmos churches must be one of the best kept secretes of the island.

Interior of a church near Skala. A church I've never read about other than in this book.