The purpose of this School is to provide an introduction to the current state of research in cosmology and astroparticle physics. It is intended for beginning graduate students, as well as more senior non-expert researchers that are interested in these fields. Llist of TOPICS & LECTURERS: First week: • INTRODUCTION TO COSMOLOGY - J. Peacock (Univ. of Edinburgh) • LENSING - U. Seljak (UC & LBNL Berkeley & Zürich U.) • GRAVITATIONAL WAVES - F. Pretorius (Princeton University) • DARK ENERGY - A. Tolley (Perimeter Institute) • LARGE SCALE STRUCTURE - M. White (UC Berkeley) • CLUSTERS - J. Cohn (UC Berkeley) Second week: • DARK MATTER - G. Bertone (IAP Paris & Zürich U.) • COSMIC MICROWAVE BACKGROUND - M. Zaldarriaga (IAS, Princeton) • NEUTRINOS IN PARTICLE PHYSICS, ASTROPHYSICS AND COSMOLOGY - G.Raffelt (Max Planck, Münich) • GALAXY FORMATION - H.J. Mo (UMass, Amherst) • INFLATION - D. Baumann (IAS, Princeton)