This two-volume text is ideal for new graduates on astronomy courses who need to get to grips with the physics involved in the subject. Four problem sets, averaging three problems per set, accompany each volume. The problems expand on the text material and represent the level of calculational skill needed to write scientific papers in astrophysics. "Students who opt to follow this pair of excellent texts are going to equip themselves with a strong background in the physics of astrophysics, and receive a compelling invitation to use this new-found knowledge to explore the many exciting areas of modern astronomy." Nature"... an excellent book ..." The Observatory"The text ... is well suited for UK final year physics students taking astrophysics options and for undergraduate and graduate astronomy students. ... The production is of high quality and the formatting of the text and equations is to be commended. This book will be a useful addition to any science teaching library." Journal of The British Astronomical AssociationVolume 1, Radiation: