The notation of supersymmetric models is presented and the assumptions of supersymmetry are discussed. The various limits which can be applied to supersymmetric models from cosmological considerations are considered. Direct searches for supersymmetry in electron-positron and hadron machines are discussed. The constraints from rare processes are considered, and an overview is given of the prospects for future searches and ways of evading the existing limits. 135 refs., 57 figs., 4 tabs. (LEW
