I am looking to purchase (or perhaps you know of someone who can trade or lend me their textbooks) some good textbooks about Horticulture, Plant Science/Biology, and Botany. What are your favorites? I am interested in horticulture for a possible living, but am not sure if I should push for a degree in this field or do most of the work through self-teaching and experience. So, I am looking to teach myself at least the basics. Can you point me in the right direction. Thank you so much!