"Stellar Physics" is a rather unique book among the growing literature on star formation and evolution. Not only gives the author, a leading expert in the field, a very thorough description of the current knowledge about stellar physics but he deals with equal care about the many problems that this field of research still faces. A bibliography with well over 650 entries will make this book an unparalleled source of references. "Stellar Evolution and Stability" is the second volume and can be read, as the first volume, as a largely independent work. It traces in great detail the evolution of the protostar towards the Main Sequence and further to the last stage of stellar evolution with its vast range from white dwarfs to the mighty supernovae explosions and blackhole formation. The book is concluded by special chapters on the stability of stars - dynamical, thermal and pulsational.