This is a comprehensive view of Galactic astronomy, written from a global point of view. The three authors have collaborated to produce a new synthesis of the forefront of knowledge about our Galaxy - what it is, what is in it, and how it might have come to be that way. The book consists of 16 chapters that cover the structure and dynamics of the Milky Way; the nature, distribution, and possible origin of its various populations; and its relationship to other galaxies. The level of the book is suitable for working astronomers, graduate students, advanced undergraduates, and knowledgeable amateurs.