KOOKS: A Guide to the Outer Limits of Human Belief by Donna Kossy. (Feral House: $16.95 paper; 256 pp.) Though the word cockoo cuckoo, as applied to people goes back to 1581 ("esp. in reference to the bird's monotonous call, or its habit of laying its eggs in the nests of other birds"-OED), the diminutive kook apparently only surfaced in the late beatnik era: "A kook, daddy-o, is a screwball who is `gone' father than most." When the unique and invaluable Kooks magazine ceased publication after only eight issues, the study and connoisseurship of aberrant thinking was at a loss.