The latest edition of the book that started it all. The Complete Book of Sea Kayaking, 6th edition, Derek Hutchinson. There was a time when Derek's book (then titled, "Sea Canoeing" as the Brits used to call any human powered boat you could carry a "canoe") was the only how-to book for hard-shell sea kayakers. Now there are lots to choose from, but this is still the most authoritative.
Paperback, 240pp, 9.3 x 7.5