I absolutely recommend his books! That is how I got hooked! The great thing is that you can look at the index of the books before buying, so you know which plants are included in each. They are wonderful references for easily accessible herbs and “weeds.” I can grow almost ALL of them!
But if I had to list a few that I think he loves (mind-reading here, can’t wait to be corrected! 😛 ):
Cayenne
Yarrow
Calendula
Comfrey
Burdock
Plantain
Marshmallow
Mullein
Nettle
I feel like I could go on and on based on what I’ve read, watched, and studied…But I know he uses and recommends those a lot for so many different problems!