In close collaboration with scientists from all over the world - and in particular within the frame of the SPARC collaboration - the groups in GSI's Atomic Physics division (AP) exploit the possibilities of the present GSI- and future FAIR-accelerator complex. This combination of a linear accelerator (UNILAC), heavy-ion synchrotron (SIS), fragment separator (FRS), and both storage rings ESR and CRYRING@ESR, makes it possible to accelerate, store, and cool slow to relativistic ion beams of every element from hydrogen to uranium. Stable or radioactive isotopes are being investigated. The main interest is focused upon the very highly charged heavy ions. These unique research possibilities stimulate a broad range of interesting experiments in both atomic and nuclear physics, as the following publications show.