Book excerpt: The long-awaited exploration of permaculture specifically for cooler Northern Hemisphere climates is finally here! Already regarded as the definitive book on the subject, The Earth Care Manual is accessible to the curious novice as much as it is essential for the knowledgeable practitioner. Permaculture started out in the 1970s as a sustainable alternative to modern agriculture, taking its inspiration from natural ecosystems. It has always placed an emphasis on gardening, but since then it has expanded to include many other aspects, from community design to energy use. It can be seen as an overall framework that puts a diversity of green ideas into perspective. Its aims are low work, high output, and genuine sustainability.