Abstract: A crucial yet unexpected piece of puzzle of the general framework of galaxy evolution is supermassive black holes (SMBHs). Despite the vast difference in physical sizes to their host galaxies, the energy released through accretion onto these SMBHs (manifested as “active galactic nuclei’’, or AGNs) plays an important role in regulating the growth of galaxies, therefore shaping the well-established tight relation between the central BH and galaxy bulge properties. I will discuss results of 
recent multiwavelength observational studies on several aspects of the SMBH-galaxy coevolution paradigm.