Cohen, a landscape designer and teacher associated with the New York Botanical Gardens, has gathered beautiful photographs of 21 specific projects accompanied by  brief descriptive interviews with the leading landscape architects who designed them.  From China to Marfa, TX, from Japan to Vancouver, from private homes to city parks these pages abound with great ideas for hardscape, buildings, plantings, and land forms.  Thoroughly enjoyable fare for a cold winter day as well as a source of a few specific plans for the Vermont gardens.