Writing about parks is more fun than writing about buildings. Parks are unpredictable, not so harnessed to the auteur system as buildings. The designer of a park is never so powerful as nature, who always has her say at the drawing board. Many building are most beautiful on the day they are finished but a brand new park, as Ronald Reagan said of the USA, has its best days ahead of it. Depending on how well they are built, buildings deteriorate or age while parks grow like living creatures from one day to the next and across the seasons. I would bet that many city-dwellers’ happiest memories take place in parks. They seem to be the most, and perhaps the last, mirthful places left in today’s cities. Rather than the ritualized coffee-drinking and passeggiate of the piazza, parks encourage an amplitude of movement and feeling. Down at the park a runner might push himself to exhaustion, a picnicker might scrub time watching an ant abscond with a crumb. Beyond their ecological benefits, parks are essential to our own well-being, our dignity even. In a park, as in a library, everyone is rich.