Controlling chaos and synchronization of chaos have evolved for a numb
er of years as essentially two separate areas of research. Only recent
ly it has been realized that both subjects share a common root in cont
rol theory. In addition, as limitations of low dimensional chaotic sys
tems in modeling real world phenomena become increasingly apparent, in
vestigations into the control and sychronization of high dimensional c
haotic systems are beginning to attract more interest. We review some
recent advances in control and synchronization of chaos in high dimens
ional systems. Efforts will be made to stress the common origins of th
e two subjects. (C) 1997 American Institute of Physics.