I'm an outdoor enthusiast but have no experience with lichens. My children and I have had a great time using this well written and well illustrated book. It is really well organized. I really recommend getting a 10 x loupe as stated in the book. I got a cheap one (I think $16) on amazon and it works well. Also, the book is organized by tree, soil and rock lichens. Some lichens can grow on more than type of surface (as noted by the authors in each description), so keep that in mind when searching for your lichen. Zero negatives about this book. Highly recommend. Wish I could buy this at my local bookstore instead of paying the high shipping to the NYBG bookstore.
An outstanding field reference book on lichens for the novice and expert alike. Small enough to carry with you but big enough to get the job done. The clear photos and excellent written descriptions allow users to identify many difficult lichens without the need for chemical tests. Definitely the first book to buy for the Northeast.