The workings of the tides, nailed. Sea sickness, cured. Famous quotes, yokel sayings about the weather, and classic poetry with a link to sailing and suchlike, included. The difference between a ship and a boat, well, slightly bodged, to be fair, but if nobody knows for sure, nobody knows. This is a really friendly and erudite spread of 'trivia', which is nothing but – it can get you out of swimming through a riptide, for one, and out of quicksand for another. I might have seen a lot of it before, but not gathered in such a fashion, and not to such a depth that notable storms and so much more are included. The common thing is to leave such a book for dipping into in the smallest room – so this is perfect for the head, then, in more ways than one.