This second volume of the series deals primarily with nuclear reactions, and complements the first volume, which concentrated on nuclear structure. Providing discussions of both the relevant physics as well as the numerical methods, the chapters codify the expertise of many of the leading researchers in computational nuclear physics. The numerical methods discussed are embodied in a FORTRAN code; sample input and test runs are also provided. All codes discussed in the book are included on a diskette, and conform to the FORTRAN 77 standard. The subjects covered include: one-boson exchange scattering; the G-matrix in finite nuclei; the nuclear-matter effective interaction; nuclear collisions; the distorted-wave Born approximation; statistical models with angular-momentum coupling; time-dependent Hartee-Fock approximation for nuclear slabs; the Vlasov-Uehling-Uhlenbeck model; the friction model for deep-inelastic and fusion reactions; the quark model and nucleon-nucleon interactions; hadron-hadron and hadron-nucleus scattering.