Abstract:6.1 Introduction6.2 Surfaces, concepts and techniques6.3 Contact angle6.4 Analysis of adhesion6.5 Scanning probe microscopy6.6 Confocal microscopy6.7 Scanning electron microscopy and transmission electron microscopy6.8 Spectroscopic methods6.9 Optical detection methods6.10 Neutron reflectivity6.11 Other techniques6.12 Future trends6.13 Sources of further information