Seismic inversion : theory and applications Basics of seismic inversion Linear systems for inversion Least squares solutions Singular value analysis Gradient based methods Regularisation Localised average solutions Seismic wavelet estimation Seismic reflectivity inversion Seismic ray impedance inversion Seismic tomography based on ray theory Waveform tomography for the velocity model Waveform tomography with irregular topography Waveform tomography for seismic impedance Appendices