The atomic nuclei are unique quantum many-body systems that consist of not only protons and neutrons but also hyperons. Hadrons of a finite number interact through strong interaction which is short ranged, having various exchange characters and spin-orbit and tensor forces. The nucleus shows various facets such as independent-particle phenomena, cluster structures, resonance phenomena and collective motions, depending on the excitation energy and the nucleon number combinations. The studies of their proper dynamics, change of structures, nuclear reactions, and interplays of different aspects have been of great interest. Moreover, in recent years, the experimental and theoretical research fields of nuclear physics are progressing and expanding to cover rich many-body dynamics under extreme conditions such as high-lying nuclear states, very neutron-rich nuclei, hypernuclear systems, and astrophysical objects.In order to meet the requirements of graduate and undergraduate students, including young researches, the book describes not only the basic aspects of nuclear physics, but also instructive and detailed contents of several research areas which emphasize the timely studies of the discipline.