This was a memoir of the author's husband dying and the author getting into mushroom foraging. It does have a substantial amount about the nerdy details of mushrooms, but it is also a lot about the author dealing with losing her husband (although there is no deeper discussion of grief) and a lot of bits about anthropological details (the author is an anthropologist), In particular, there is a lot of talk about the mushrooming communities, their class system, their secrets and manners, etc. There are also some recipes on how to cook the mushrooms. I found it interesting at parts but a bit dispersed in the message. If you like Jessica L. Lee books, this is in the same vein.