This book addresses analytical descriptions and geometric representations of the spatial anisotropy of induced optical effects in crystalline materials of different symmetry classes, as well as experimental methods and apparatus for the comprehensive studies of electro-, piezo-, elasto- and acousto-optic phenomena in crystalline solids. It also details 3D analysis of the anisotropies of linear electro-optic, piezo-optic, elasto-optic, acoustic and acousto-optic properties of various crystalline materials and constructs indicative or extreme surfaces describing the anisotropy effect.