This is a compilation of mushrooms covered in the other three books in the "Mushrooms of Alaska" series plus species that are not included in the others. It is the most comprehensive reference to Alaska's mushrooms. It includes color photos, detailed descriptions, information on which species are edible and which are poisonous, and abundance and range when known. Over 300 species are covered in detail with 100's of other species mentioned. Many Alaska fungi occur in the Yukon, our neighboring territory. If I have found them in the Yukon, Canada, I include this information in the comments section of the book.