"Go theory" refers to knowledge useful or potentially useful for improvement. "Research" refers to more than writing down somewhere floating around verbal knowledge, more than recompiling existing knowledge, more than studying games and writing down immediate findings - instead research refers to methodical study combined with the creation of new knowledge. To limit the topic, let us ignore, e.g., pure maths books with possible applications also in go and computer go research not immediately applicable also for humans.

Which research papers and seminar booklets are there? These books have more than trivial research results:

- Mathematical Go Endgames / Chilling Gets the Last Point
- Counting Liberties and Winning Capturing Races (partial contents appeared in Second Book of Go, some contents had appeared in BGJ)
- Capturing Races 1 / Two Basic Groups
- Joseki 1 Fundamentals
- Joseki 2 Strategy
- Joseki 3 Dictionary

Have I overlooked any book?