My Favorite Robert Ludlum Books

My favorite writer of all time is Robert Ludlum, I've read all of his books at least once. Most I've read so many times that I remember almost every word of the book. I don't have much time to read books any more but really like his genre. The newer Bourne books are great so are the Covert One series books.

I've tried to order the books below from my favorite to least favorite. The books at the bottom are not necessarily bad books, just not my favorite.

1. The Gemini Contenders (1976)
2. The Chancellor Manuscript (1977)
3. Trevayne (1973, writing under the pen-name Jonathan Ryder)
4. The Bourne Identity (1980)
5. The Scarlatti Inheritance (1971)
6. The Prometheus Deception (2000)
7. The Matarese Circle (1979)
8. The Aquitaine Progression (1984)
9. The Icarus Agenda (1988)
10. The Scorpio Illusion (1993)
11. The Holcroft Covenant (1978)
12. The Rhinemann Exchange (1974)
13. The Matarese Countdown (1997)
14. The Matlock Paper (1973)
15. The Apocalypse Watch (1995)
16. The Parsifal Mosaic (1982)
17. The Road to Omaha (1992)
18. The Osterman Weekend (1972)
19. The Bourne Supremacy (1986)
20. The Cry of the Halidon (1974, writing under the pen-name Jonathan Ryder)
21. The Bourne Ultimatum (1990)
22. The Road to Gandolfo (1975, writing under the pen-name Michael Shephard)

Note: There are more books "credited" to Robert Ludlum or in his style but I have only listed the books that were published while he was alive. The others are good also but I am not 100% sure which were written by ghost writers and which were written by him.