The Summer School on Algebraic and Enumerative Combinatorics will be held in July, 2-13, 2012, at the "Centro de estudos Camilianos", in a building of Álvaro Siza, the 1992 Laureate of the Pritzker Architecture Prize. The "Centro de estudos Camilianos" is in S. Miguel de Seide, near to Guimarães, Portugal, where the participants are expected to be lodged. The school will focus on four courses, given by Francesco Brenti, Christian Krattenthaler, Marc Noy and Vic Reiner. The topics to be addressed by the speakers are, respectively, Combinatorics of Coxeter Groups, Map Enumeration, Asymptotic Enumeration of Topological Graphs and Reflection Group counting and q-counting, and the courses are mainly directed to graduate and post-graduate students, as well as researchers. There will also be time for some contributed short talks by participants.