The title tells it all.  The gardeners (seven full time!!) from Chanticleer, a private garden open to the public west of Philadelphia) describe their domains from bogs and ponds to gravelly rock slopes in great detail accompanied by beautiful close-up photographs.  The advice is specific (tons of plant names with genus, species, and variety) and practical, and the results are beautifully documented.  A must visit for the spring or summer and a very useful source of dreams and ideas for VT at this gray/cold period of the year.