Almost exactly 20 years ago, Simon Schama’s book Landscape & Memory was published. It’s not an easy read but it became a significant influence on the way I taught Landscape Architecture. Essentially, the book describes “landscape” as being a construct within the mind of the individual rather than an objective entity whose constituent parts are rock, water and vegetation. Schama believes that nature and human perception are indivisible and that “Before it can ever be a repose for the senses, landscape is the work of the mind. Its scenery is built up as much from strata of memory as from layers of rock”.