Abstract In this presentation the main advances occurred in the past years concerning the observational features of Gamma-Ray Burst (GRB) prompt event and afterglow polarization in the optical, as well as in other bands, are reviewed. Also, the observed cases of an `optical flash' simultaneous with the GRB itself are presented, along with their theoretical interpretation and the description of present and future observational fast-response techniques to chase this emission.
Keywords gamma rays: bursts -- techniques: polarimetric -- techniques: photometric
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