From Richard: These are fine to have - not my favorites but I do own them and used to use them a bit more than I do now. The main piece of feedback I would give is that both of these focus on a subset of plants - the edible ones, the medicinal ones - rather than serving as general field guides for i.d. of plants more generally. My advice is if you are into foraging or wild medicine harvesting, or field i.d. is to get field guides and acquire skills to identify anything, not just the medicinal or edible ones. Then you really won't make any mistakes!