The quaternary phase
Changes in the art during the quaternary phase, and the transition to the ternary phase
The ternary phase
The post-art phase : logic
Overview.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
The art and logic of Ramon Llull : a user's guide by Anthony Bonner. ISBN 9789004163256. Published by Brill in 2007. Publication and catalogue information, links to buy online and reader comments.
