Many people have a sketchy idea of the work of cosmologists, but Professor Levin's experience in teaching both scientific and liberal arts students has enabled ... » 

Many people have a sketchy idea of the work of cosmologists, but Professor Levin's experience in teaching both scientific and liberal arts students has enabled him to impart much of our current thinking without resorting to difficult mathematics. Theoretical concepts are emphasized, in particular the symmetries of homogeneity and isotropy enjoyed by our universe on the largest scales, how these symmetries lead to only one quantity being needed to describe the growth of the universe from its infancy to the present time, and how the so-called parameters of the universe are the ingredients used to construct the model universes to which ours the real thing is compared. «