The Life of Si is the bible for Siologists. Many expect it to be about the life of someone called Si but we hate to disappoint you. Siology has no leader, messiah, god, or any specific person that is followed. The Life of Si contains a series of chapters which combined build a basis for Siology.
The Life of Si is currently sold out. We are working on an ebook for the iPad and Kindle which should be available shortly.