The PhD Dissertation of Dr. Gabriel Martín, entitled ''Design and implementation of new methods for spatial preprocessing prior to spectral unmixing of remotely sensed hyperspectral data'' and co-supervised by Prof. Antonio Plaza, University of Extremadura (UEX), Spain, and Prof. José Manuel Bioucas Dias, Instituto de Telecomunicações (IT), Instituto Superior Técnico, Lisbon, Portugal, received a Best PhD Dissertation Award (Engineering field) at the University of Extremadura in the year 2013. The thesis was developed as part of a collaboration between UEX and IT, and was defended on July 5th, 2013. Dr. Martín spent 18 months in each institution developing this joint work.