Gravitation and Cosmology: Principles and Applications of the General Theory of Relativity by Steven Weinberg
My rating: 5 of 5 stars
A highly sophisticated and an elegant text book on general Relativity and its application. I would say a super book. I have read this book and solved for now a few daunting problems in Physics by applications of the content in this book. My research is available on my website but for context I recommend this book for serious practising physicists.