The Barefoot Navigator is a good book:
The Barefoot Navigator: Jack Lagan: 9781574092325: Amazon.com: Books
or you can just buy a GPS
and a chart.
Books on sailing: Youth by Josef Conrad, Adrift by Steven Callahan, Maiden Voyage by Tania Aebi, The Dove by Robin Lee Graham, Cape Horn to Starboard by John Kretschmer, Outerbridge Reach by Robert Stone (be careful with this one), Two Years Before the Mast
by Richard Henry Dana (seasickness description is awesome)
and if you want to know how to sail it's like this:
picture a boat pointing to the top of the page. The wind
is pointing down the page. As the boat comes off the wind
are in tight. The boat will start moving forward at about 30-50 degrees off the wind depending on the boat. As the boat points further down the page, the sails
come out further.
Okay, now you are set. Get a sunfish and practice gaining knowledge from your experiences. Then read other books plus throw in a little racing
and you'll be set.
Another way to learn sailing is by watching videos.
I'm thinking the crewman on this boat is bringing it back down there in the beginning after the gust with downhaul alone. Downhaul helps flattens the sail decreasing power and decreasing drag if you are a racer
. (he also probably derotated the mast
but don't worry about that now)
On a cruising boat it may take 15 plus seconds for it to take effect, on a small boat or racing catamaran