This text and software package contains many of the formulae needed for researchers to compute atomic processes, including photoionization, Auger and radiative decay, elastic scattering and ionization. The calculations are set within the Hartree-Fock approximation and its generalization to the random phase approximation with exchange. The results of calculations can be used to solve a wide range of physical problems, from atomic structure to cross sections of collision processes.It explains how to use the ATOM programs, the software for which is written in FORTRAN and may be used on VAX or UNIX-based machines. The programs each consider a different range of variables. The organization of the text and software is designed to help the user calculate what they need to as easily as possible.