Planetizen talks with authors Bill Bishop and Richard Florida about how American cities and communities are increasingly attracting people with similar personality types, professional interests and voting preferences -- trends they've each documented in new books.

Bishop is author of "The Big Sort", which looks at the increasing trend of self-segregation and homogeneous voting in communities across America. Florida is the best selling author of "The Rise of the Creative Class." His new book is "Who’s Your City?", which looks at how choosing a place to live is one of the most important decisions people make, and how people are increasingly moving to places with like-minded populations. We talk with Bishop and Florida about how the trends they’re seeing are affecting cities and people.

In part one of this discussion, Bishop and Florida talk about whether the trends they've documented are good for the country, and whether cities should be encourage these trends to continue.