The formation and evolution of galaxies is a key problem in modern astrophysics governed by complex physics of star formation and its suppression, as well as the interplay between dark and baryonic matter. The spatial distributions of stellar populations in galaxies have been studied for several decades, but the advent of large-scale Integral-Field-Unit (IFU) surveys of the local galaxy population are now providing a giant leap forward. The SDSS-IV survey MaNGA (Mapping Nearby Galaxies at APO) delivers spatially resolved spectroscopy for 10,000 SDSS galaxies in the low-z Universe. I will present an overview of our recent results from studying this amazing data set with new insight into the stellar population gradients in galaxies in the multivariate parameter space of galaxy mass, type and environment.