This volume contains the proceedin, r. of the NATO Advanced Study Institute on "Forces in Scanning Probe Methods which was CG-sponsered and organized by the "Forum fUr N anowissenschaften." The conference was held in Schluchsee in the south em Black Forest (Germany) from March 7-18, 1994. 30 invited lecturers giving tuto rial talks of historical and recent research activities and about 100 contributed, oral and poster presentations from 130 people participating, created a very active and lestimulating, lively atmosphere. The inventions of scanning tunneling microscopy, atomic force microscopy...