19 books
Better Declarer Play
So You Think You've Got Brains?
Combining Your Chances
So You Think You Have Brains?
Don't Be Fooled! Countering Deception at Bridge
Where to, Guv?
That Four-Letter Word: Diet
Bridge 100 Classic Problems
How Good is Your Bridge?
Beat the Experts at Bridge
Focus on Hocus-Pocus
Focus on Declarer Play
Focus on Defence
Pathways to Better Bridge Defense
Focus on Bidding
Challenge Your Declarer Play at Bridge
Spot the Bridge Writer's Blunder
Bridge, the Expert Improver
Bridge, the Expert Beginner