The Thesis entitled Electrocatalysis and surface nanostructuring: atomic ensemble effects and non-covalent interactions, whose author is Dr. María Escudero Escribano, and which was developed at the Institute of Physical Chemistry "Rocasolano" under the supervision of Dr. Angel Cuesta Ciscar, has received the Prize to the Best PhD Thesis in the Region of Madrid in the course 2011-2012, awarded by the Madrid Chapter of the Spanish Royal Society of Chemistry (RSEQ). The research was focused on the study of the role of geometric atomic ensembles in electrocatalysis, and on the fabrication of surface nanostructures guided by a self-ordered molecular pattern, namely cyanide-modified Pt(111). The Thesis can be downloaded from Digital CSIC (http://hdl.handle.net/10261/42378).