The Kepler Mission is exploring the diversity of planets and planetary systems. Its legacy will be a catalog of discoveries sufficient for computing planet occurrence rates as a function of planet and star properties. The mission has gone a long way toward achieving that goal. The number of planet candidates now exceeds four thousand, and small planet candidates in the habitable zone of G-type stars are beginning to emerge. Statistical analyses suggest that planets abound in the galaxy (with each main sequence star having at least one) and that small planets form efficiently. I will report on Kepler’s progress determining the underlying planet population in the galaxy and determining the occurrence rate of small habitable zone planets.