Dear Mr Rawles,
Further to the recent excellent Food Forest Gardens article, I would like to add my support of Martin Crawford’s book Creating a Forest Garden: Working with Nature to Grow Edible Crops [1]. I would also add that his web site [2] is absolutely fascinating for reading through the varied types (and breeds) of fruit and nuts. Though it is of UK bias, there are a lot of North American types included and as a source of information on types of trees it is the most extensive source I have found.
On a personal note I have bought upwards of 250 fruit, nut, berry trees from Martin over the years I when I have spoken to him he is pleasant and knowledgeable.
Basically the web site is a valuable source of plant information for those interested. Keep up the good work. Regards, Bill C.