This Permaculture slideshow goes through soil building techniques laid out by Bill Mollison in his book A Designer's Manual. These include earthworks, creating complex and multistoried plant systems, recycling detritus and banana circles, using aquatic weeds biomass, recycling crop wastes and animal manures, designing in hedgerow and mulch plants, and using green manures and ground covers. We also briefly look at housing and energy systems of the tropics.