Xiaohui Fan, Steward Observatory, The University of Arizona
"Sparke and Gallagher have produced a remarkably comprehensive and easy-to-read account of extragalactic astronomy and cosmology. Aimed at third and fourth year undergraduates, but invaluable for researchers at all levels, frontier topics in this exciting and popular area of astronomy are discussed with admirable clarity, with the physical principles carefully explained and well-illustrated."
Richard Ellis, Steele Professor of Astronomy, California Institute of Technology
"Sparke and Gallagher have successfully distilled a large, complex, and rapidly growing subject into a highly readable and self-contained textbook. It skillfully introduces the fundamentals of extragalactic astronomy and stellar dynamics, while engaging the interest of readers with their up-to-date account of the observational and theoretical work in the subject. It will serve as a superb advanced textbook for an undergraduate course in astronomy and astrophysics, as well as a valuable reference source for graduate students and researchers, in astronomy and physics. I will keep it close at hand on my own bookshelf."
Robert Kennicutt, Plumian Professor of Astronomy, University of Cambridge
Galaxies in the Universe is more than its title suggests. It has all the ingredients needed for a comprehensive senior-level course on galaxies, including the necessary background technology, stellar astrophysics and dynamical and cosmological theory. The book is full of interesting problems aimed at broadening the reader's understanding. Galaxies in the Universe is an excellent text: I use it for my senior class and can strongly recommend it.
Ken Freeman, Duffield Professor, The Australian National University
"The scope of the book is impressive indeed. It is sure to find its way onto the desks of astronomers and astrophysicists around the world who are looking for key resources to teach senior physics undergraduates and even first-year graduate students. In the intervening years between the first edition of the text and this new one, research on galaxies everywhere and at all redshifts has proliferated enormously. It accurately conveys the present sense of excitement and anticipation at still more advances just around the corner ... The writing style is energetic, yet also remarkably compact: single sentences on page after page convey whole trains of embedded logic as if the authors cannot wait to get on to the next point. All in all, this book is a welcome and major accomplishment."
William E. Harris, Professor of Astrophysics, McMaster University, Ontario, Canada