Old post, but great advice. My mom, dad and I forage for mushrooms every summer and autumn, and if done safely and carefully, mushrooms are an amazing and abundant local resource. We only pick four safe species which we are 100% confident in, and none of them can be confused with any dangerous species. My favourite, Craterellus tubaeformis, is somewhat controversial however, because it can grow in close proximity to the deadly Cortinarius rubellus.
Just want to add that it's important to use an up to date and region-specific guidebook, because reccomendations, both regarding what's edible/poisonous and safe practices when it comes to preparation/preservation can change over time.