Exact solutions in three dimensional gravity Point particles Dust solutions AdS cyclic symmetric stationary solutions Perfect fluid static stars Static perfect fluid stars with [lamda] Hydrodynamic equilibrium Stationary perfect fluid with [lamda] Friedmann Robertson Walker cosmologies Dilaton inflaton FRW cosmologies Einstein Maxwell solutions Nonlinear electrodynamics black hole Dilaton minimally coupled to gravity Dilaton non minimally coupled to gravity Low energy 2+1 string gravity Topologically massive gravity Bianchi type spacetimes in TMG Petrov type N wave metrics Kundt spacetimes in TMG Cotton tensor in Riemannian spacetimes Due to the big amount of existing nowadays exact solutions in 2+1 Einstein gravity the purpose of the present book is to bring to the audience of experts and young researchers a complete and concise list of exacts solutions with emphasis on their physical and geometrical properties in (2+1) gravity from its beginning in 1963 to present. Emphasis is addressed to solutions to the Einstein equations in the presence of matter and fields for instance point particle solutions perfect fluids cosmological spacetimes dilatons inflatons stringy solutions. The second part of this book deals with solutions to vacuum topologically massive gravity with a cosmological constant; there exist two big families of spacetimes: the inhomogeneous Bianchi class of solutions the Kundt spacetimes and the Cotton type N wave fields