  A review is given on aspects of indirect imaging techniques in X-ray binaries
which are used as diagnostics tools for probing the X-ray dominated accretion
disc physics. These techniques utilize observed properties such as the emission
line profile variability, the time delays between simultaneous optical/X-ray
light curves curves, the light curves of eclipsing systems and the pulsed
emission from the compact object in order to reconstruct the accretion disc's
line emissivity (Doppler tomography), the irradiated disc and heated secondary
(echo mapping), the outer disc structure (modified eclipse mapping) and the
accreting regions onto the compact object, respectively.
