Frank Lloyd Wright was the greatest American architect of the 20th century. During a long life he designed many of the most striking and iconic buildings in the USA - structures such as Fallingwater, a house poised above a waterfall in rural Pennsylvania, the Unity Temple, the USA's first all-concrete public building, and New York's amazing, spiral-shaped Guggenheim Museum.

One of the most remarkable innovators in the history of architecture, Wright produced some of the most revolutionary buildings - breathtaking prairie houses, the Johnson Wax company headquarters with its Pyrex glazing and stunning mushroom columns, his own canvas-roofed desert home and office. Wright was a technological innovator too, pioneering inventions such as double-glazing, sound-absorbing office furniture, and prefabricated office partitions. But Wright did not pursue the new for its own sake. All his work is underpinned by a belief system: that buildings should be at one with their environment, that their form should grow from the needs of the client, and that site, floor plan, structural materials, and the use of the building should be in harmony. Wright called this set of ideas organic architecture, and both the philosophy and the buildings it produced are as inspiring now as they were when Wright was alive and working.