title: General Relativity: An Introduction to the Theory of Gravitational Field
author:  Hans Stephani 
description: This is an excellent introduction to the subjects of gravitation and space-time structure. It discusses the foundations of Riemann geometry; the derivation of Einstein field equations; linearised theory; far fields and gravitational waves; the invariant characterisation of exact solutions; gravitational collapse; cosmology as well as alternative gravitational theories and the problem of quantum gravity.
zlib_text: Modern	General	Relativity
  Black	Holes,	Gravitational	Waves,	and	Cosmology
  Einstein’s	 general	 theory	 of	 relativity	 is	 widely	 considered	 to	 be	 one	 of	 the	 most	 elegant	 and
  successful	scientific	theories	ever	developed,	and	it	is	increasingly	being	taught	in	a	simplified
  form	at	advanced	undergraduate	level	within	both	physics	and	mathematics	departments.	Due	to
  the	 increasing	 interest	 in	 gravitational	 physics,	 in	 both	 the	 academic	 and	 the	 public	 sphere,
  driven	largely	by	widely-publicised	developments	such	as	the	recent	observations	of	gravitational
  waves,	general	relativity	is	also	one	of	the	most	popular	scientific	topics	pursued	through	self-
  study.	Modern	General	Relativity	introduces	the	reader	to	the	general	theory	of	relativity	using
  an	 example-based	 approach,	 before	 describing	 some	 of	 its	 most	 important	 applications	 in
  cosmology	 and	 astrophysics,	 such	 as	 gamma-ray	 bursts,	 neutron	 stars,	 black	 holes,	 and
  gravitational	waves.	With	hu