Chapters
 Introduction: why massive gravity?
 From linearized General Relativity to FierzPauli theory.
 The van DamVeltmanZakharov discontinuity.
 Non linear massive gravity, the Vainshtein mechanism and the Boulware Deser ghost.
 The Decoupling Limit.
 de RhamGabadadzeTolley theory and its phenomenology.
 Related models: Galileons, Generalized Galileons and others.
Abstract
I
will introduce the general features of "massive gravity theories", a
set of theories where the graviton is given a mass with the aim of
getting interesting large distance modifications of gravity to be
useful in
cosmology. Such theories suffer from generic pathologies including the
"vDVZ discontinuity" the presence of a ghost like mode (Boulware Deser
ghost) and strong interactions in the scalar sector. These will be
introduced as well as possible cures, including the Vainshtein
mechanism. Related theories (some of which featuring the Vainshtein
mechanism) will also be briefly exposed. The lectures will be suitable
for beginners. 
Bibliography
 Articles
 "Massive Gravity" par Claudia de Rham, arXiv:1401.4173
 " Theoretical Aspects of Massive Gravity" par Kurt Hinterbichler, Rev.Mod.Phys. 84 (2012), arXiv:1105.3735
 "
An introduction to the Vainshtein mechanism" par Eugeny Babichev,
Cédric Deffayet, Class.Quant.Grav. 30 (2013) 184001, arXiv:1304.7240T
