Contents: White Dwarfs (S.D. Kawaler): Introduction -- Observed Properties of White Dwarfs -- Physics of White Dwarf Interiors -- White Dwarf Formation and Early Cooling -- Chemical Evolution of White Dwarfs -- White Dwarf Cooling and the White Dwarf Luminosity Function -- Nonradial Oscillations of White Dwarfs: Theory -- Pulsating White Dwarfs -- Astrophysical Applications of White Dwarfs. Neutron Stars (G. Srinivasan): A Historical Introduction -- The Nature of Pulsars -- The Physics of Neutron Stars -- The Progenitors of Neutron Stars -- Binary Pulsars -- Millisecond Pulsars -- Magnetic Field Evolution -- Glitches -- Plate Tectonics. Black Holes (I. Novikov): Astrophysics of Black Holes -- A Nonrotating Black Hole -- A Rotating Black Hole -- Electromagnetic Fields Near a Black Hole -- Some Aspects of Physics of Black Holes, Wormholes, and Time Machines -- Observational Appearance of the Black Holes in the Universe -- Primordial Black Holes -- Acknowledgements -- References.