Book excerpt: Structure of the Moon's Surface aims to assemble and marshal relevant matter, and to produce a largely unprejudiced text which brings lunar studies up to date and stresses the importance of certain features of the Moon which have frequently been disregarded in the past, largely because of lack of knowledge about them. The book contains 14 chapters organized into two parts. Part I reviews and summarizes important physical problems. These include the liberations of the moon; height determinations of points of the moon's surface; the figure of the moon; and the moon's temperature and atmosphere. Part II discusses relatively new facts and ideas, which have been insufficiently emphasized in the past. Topics covered include ray systems; rilles, faults, and wrinkle ridges; and crater distribution and frequency. It is hoped that this book will be of use both to the professional scientist and to the amateur astronomer.