"Tall Boy" vs. small Genoa
I think I like the older one better. It has various authors who explain their real-life experiences and how different approaches worked for them. In the newer one I believe they go into a lot of technical stuff about sailcloth. That type of information gets obsolete quickly with design improvements. The aerodynamics that both books deal with haven''t changed much since Ook first stood up with his fur coat in the dugout.