The confluence of factors driving urban growth is highly complex, resulting from a combination of ecological and social determinants that co-evolve over time and space. Identifying these factors and quantifying their impact necessitates models that capture both why urbanization happens as well...

A survey of textbooks reveals that scholars consider Alfred Stieglitz to have been the greatest photographer of the twentieth century, followed in order by Walker Evans, Cindy Sherman, Man Ray, and Eugène Atget. Stieglitz, Evans, and Atget were experimental artists, who were committed to...