- The Gentleman's Health Code: Training, Sleep, and the Body That Still Works at Sixty (The Modern Gentleman’s Code)
- The Gentleman's Mind Code: The Quiet Inner Life, the Disciplines of Attention, and a Mind That Serves a Long Life (The Modern Gentleman’s Code)
- The Gentleman's Star Code: A Man's Guide to the Zodiac, Character, and the Art of Knowing Yourself (The Modern Gentleman’s Code)
- The Gentleman's Work Code: The Craft of a Working Life, and the Vocation that Emerges from Doing It Well
- The Gentleman's Dating Code: Courtship, Honesty, and the Art of Being Worth Choosing (The Modern Gentleman's Code)





