19 -> 23 May 2008, 15:30 -> 17:30. In the first part of this short course I discuss cosmological concepts and methods, to be used in astrophysical measurements and their interpretation. Starting from Einstein´s equations of General Relativity, I explain how the Friedman-Robertson-Walker Universe is derived, and I discuss standard cosmological expansion and acceleration in theories with dark energy contributions in the Universe energy budget, in particular the cosmological constant scenario. In the second part, I discuss issues of relevance to particle physics, in particular (thermal) dark matter, and ways of computing the amount of dark matter presently available in the Universe, primarily through the Boltzmann equation of species abundances. Such analysis can lead to stringent constraints on particle physics models, although it should be stressed that there is a strong model dependence of the results.