in this review we will start out with an effort to describe the present und
erstanding of the dominant mechanisms for electron transfer in collisions b
etween slow highly charged ions and atoms. We then follow up with an accoun
t of the most prominent phenomena in highly charged ion-surface collisions
and emphasize the similarities and differences between the collision scenar
ios for atomic and surface targets Finally we will discuss recent advances
in the much less mature field of highly charged ion-cluster (mainly C-60) c
ollisions.