Lacking a first encyclical from pope Francis (see note below), if you want to know the pope I strongly recommend to read the interview he gave to to the editor in chief of La Civiltà Cattolica. It is all over the web, but for once I think it is worth a lot reading it.
Note: Lumen Fidei even if formally the first encyclical Francis, has been regarded after an analysis of the content and style as written almost completely by Benedict XVI, with only minor additions from Francis. Because of this almost nothing of Francis "program" as a pope can be deduced from that. In contrast the interview tells us a lot more of who Francis is. Enjoy.