If you need a book on gardening, ornamental and edible horticulture, sustainabiltiy and more, Timber Press probably has a book on that topic. Located in the Pacific northwest, this publishing house covers a lot of information for gardeners in all four corners of the US, Canada, and the UK.
The gorgeous photography in the books of this premier gardening publisher is breathtaking. Check the page where the subjects of the books are listed. I am sure you will find one book out of the 431 published books that will interest you. The categories help you decide which one or more to choose on a topic.