Our 2010 summer school included lectures on all the main codes currently used in high resolution simulations of galaxy formation and evolution: the adaptive mesh refinement codes ART, Enzo, and Ramses; the smooth particle hydro codes GADGET, Arepo and Gasoline/PKDGRAV; and also the Sunrise code for creating images of simulated galaxies in all wavebands including scattering, absorption, and reemission by dust.