Frank Lloyd Wright was an American architect, designer, writer, and educator. He designed more than 1,000 structures over a creative period of 70 years. Wright believed in designing in harmony with humanity and the environment, a philosophy he called organic architecture. This philosophy was exemplified in Fallingwater, which has been called "the best all-time work of American architecture". Wright played a key role in the architectural movements of the twentieth century, influencing architects worldwide through his works and hundreds of apprentices in his Taliesin Fellowship.
Wright was the pioneer of what came to be called the Prairie School movement of architecture and also developed the concept of the Usonian home in Broadacre City, his vision for urban planning in the United States. He also designed original and innovative offices, churches, schools, skyscrapers, hotels, museums, and other commercial projects. Wright-designed interior elements were integrated into these structures. He wrote several books and numerous articles and was a popular lecturer in the United States and in Europe.