Book excerpt: The second in a series of highly practical, hands on, step-by-step photographic manuals, Replacing Your Boat's Electrical System fills a gap in the market for the DIY boat builder and repairer. It is a subject covered only in piecemeal fashion by the yachting press, which, like general boat repair manuals, can't go into the level of detail Micke Westin does. This is a visual, hand-holding guide, dwelling on the details as it explains each procedure rather than focussing on the theory (which is relegated to an appendix, for those who wish to go further).