Unplayable, by Robert Lusetich

The title refers to the code word Team Tiger use when their boss is in a foul mood, and the world's No 1 golfer had plenty to be upset about in 2009. Lusetich set out to build up a picture of Woods by tracking him through every Tour event he played in last year, then had to rejig his material after Woods's private life went into meltdown.

Don't expect any explosive new revelations, but do expect a deeply absorbing insight into the factors that make Woods the man and the golfer he is, backed by a host of revealing interviews, not least with his long-serving caddie Steve Williams. (Woods himself did not co-operate, but was perfectly affable when meeting Lusetich.)

The best book on Woods so far, even if he remains an enigma.

Next month Woods tees up in The Open but he is unlikely to surpass the drama of Tom Watson's run to a play-off last year at the age of 59, recalled graphically by Robert Winder in 'Open Secrets' (Little, Brown, £20). But as we now know, with Tiger anything is possible.

Published in hardback by Simon & Schuster, £17.99