I use the Modern Herbal Dispensatory book off of Amazon. Here is the link: https://www.amazon.com/Modern-Herbal-Dispensatory-Medicine-Making-Guide/dp/1623170796/ref=mp_s_a_1_5?crid=35WL76JM2I7B6&keywords=herb+book&qid=1660838732&sprefix=herb+book%2Caps%2C91&sr=8-5
Super super helpful. Talks about making medicine from herbs but over half of it talks about different herbs and their uses. Highly recommend!
You want a thorough modern textbook with good information on interactions and dosages, a lot of traditional texts don’t have much info on those. The Modern Herbal Dispensatory is a good option.
Making Plant Medicine by Rico Cech is less comprehensive, but also less unwieldy and intensely practical, so I find using the two books in combination is a winning move.
The Modern Herbal Dispensatory: A Medicine-Making Guide https://www.amazon.com/dp/1623170796/ref=cm_sw_r_cp_api_i_GEZV5HNVSJZRD3MEW4GN?_encoding=UTF8&psc=1