Totally different and - being a fiction reader all my live - somewhat challenging.
The first one is "Room at the Mark" by Robert C. MacArthur, A history of the development of yachts, yacht clubs, yacht racing, and the racing rules.
Excerpt from page 2:
I knew we did something right, investing in the future....
The second on is "The Definitive Book of BODY LANGUAGE" by Allan & Barbara Pease.
From page 153:
Sailors beware, from now on I can tell if you are uncertain....