A big endless inventory techniques. A book to discover the various methods to permaculture. The methods and techniques are mentioned, but not really detailed. It allows to discover but not to put them into practice. To advise the beginner to the idea of a field. But if you already knew a bit about your way past you do learn almost nothing useful. Many photos to make people want but few details to be really useful. For example, the aromatic garden spiral, several pages almost as photos but no information on how to orient the spiral. I found more information on the Internet in 10 minutes by reading these pages. Ditto for the stumbles culture.