Tracking of gamma-rays in position sensitive germanium and silicon detectors is 
a relatively new concept. In the energy region of a few hundred keV up to a few 
MeV it aims at identification of the sequence and positions of photon scattering 
points inside a detector. This is achieved by verifying the energy and momentum 
conservation laws for each Compton interaction. For this purpose the 
three-dimensional positions of photon interactions are decoded from the detector 
signals by the Pulse Shape Analysis. The talk will provide an overview of these 
techniques and demonstrate advantages of gamma-ray tracking as compared to the 
conventional spectroscopy with non-segmented detectors. Such advantages include 
a possibility to filter radiation backgrounds, perform imaging and linear 
polarimetry of gamma-rays. Recent developments even indicate a possibility for 
gamma-ray circular polarimetry which would not require magnetized targets and 
naturally combines with a concept of a Compton telescope.