Sean Carroll in Preposterous Universe:
Cities are incredibly important to modern life, and their importance is only growing. As Geoffrey West points out, the world is adding urban areas equivalent to the population of San Francisco once every four days. How those areas get designed and structured is a complicated interplay between top-down planning and the collective choices of millions of inhabitants. As the world is changing and urbanization increases, it will be crucial to imagine how cities might serve our needs even better. Johanna Hoffman is an urbanist who harnesses imagination to make cities more sustainable and equitable.
More here.