he has a book with a cd that is called  3 minutes to blues rock and folk harp
It's $9.95 us dollars for just the book or 15.95 for book with haomonica... 80 page book with a 74 min  self guided play along cd  that teaches a variety of  harmonica styles in minutes. you can find some of his tteaching books at barnes and noble

http://www.davidharp.com/beginning_har_books.html