Foraging and telling apart edible mushrooms from the non-edible ones seems like a nice hobby to have. Are there any good reliable books that I can read to get started?
Almost definitely, but which one depends on where you live since species vary so drastically from place to place. The best way to find out is to look for a Facebook group for foraging in your state or city and ask which books are best for there. Many areas also have good beginner programs or events that teach some basics of a few easy edibles that have no toxic lookalikes.