2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33954This is a short summary of my lectures given at the Fourth Mexican School on Gravitation and Mathematical Physics. These lectures gave a brief introduction to black holes in string theory, in which I primarily focussed on describing some of the recent calculations of black hole entropy using the statistical mechanics of D-brane states. The following overview will also provide the interested students with an introduction to the relevant literature.LaTex, lectures given at the 4th Mexican School on Gravitation and Mathematical PhysicsGeneral Relativity and Quantum Cosmologytext