There are lots of books that deal with aspects of boat maintenance, but Calder has just the right level of detail on almost all the areas of maintenance that you might need. He points out potential problem areas, and whilst he seems a bit over-cautious at times (I sometimes wonder if he ever actually gets to SAIL his boat), it's much better that he errs on the side of caution. We've used this book for years, and it's helped us through a complete electrical rewiring, a top-end engine overhaul and a strip and service of the marine toilet! A definite must if you can't afford yard maintenance for day to day jobs.