Cosmology Steven Weinberg This book is unique in the detailed, self-contained, and comprehensive treatment that it gives to the ideas and formulas that are used and tested in modern cosmological research. It divides into two parts, each of which provides enough material for a one-semester graduate course. The first part deals chiefly with the isotropic and homogeneous average universe; the second part concentrates on the departures from the average universe. Throughout the book the author presents detailed analytic calculations of cosmological phenomena, rather than just report results obtained elsewhere by numerical computation. The book is up to date, and gives detailed accounts of topics such as recombination, microwave background polarization, leptogenesis, gravitational lensing, structure formation, and multifield inflation, that are usually treated superficially if at all in treatises on cosmology. Copious references to current research literature are supplied. Appendices include a brief introduction to general relativity, and a detailed derivation of the Boltzmann equation for photons and neutrinos used in calculations of cosmological evolution. Also provided is an assortment of problems. Steven Weinberg is a member of the Physics and Astronomy Department of the University of Texas, Austin. His research has been honored with the Nobel Prize in Physics and the National Medal of Science, and election to the US National Academy of Sciences. The American Philosophical Society awarded him the Benjamin Franklin Medal, with a citation that said he is "considered by many to be the preeminent theoretical physician alive in the world today." His books include the three volume treatise, The Quantum Theory of Fields. Educated at Cornell, Copenhagen, and Princeton, he also holds honorary doctoral degrees from sixteen other universities. He taught at Columbia, Berkeley, M.I.T, and Harvard, where he was Higgins Professor of Physics, before coming to Texas in 1982.