Aconferenceon NoncommutativeGeometryandtheStandardModelof- ementaryParticlePhysics washeldattheHesselbergAcademy(innorthern Bavaria, Germany) during the week of March 14 19, 1999. The aim of the conference was to give a systematic exposition of the mathematical foun- tions and physical applications of noncommutative geometry, along the lines developedbyAlainConnes. Theconferencewasactuallypartofacontinuing series of conferences at the Hesselberg Academy held every three years and devoted to important developments in mathematical ?elds, such as geom- ricanalysis, operatoralgebras, indextheory,...