This is the 12th workshop of this series devoted to the physics of the tau lepton and its associated neutrino. The meetings have been organized every two years since the first workshop at the University of Paris (Orsay,France) in 1990. The latest workshop was held in 2010, in Manchester.
The goal of the Workshop is, by getting together theorists and experimentalists, to discuss recent progress in tau lepton physics. New tau results from high energy machines, low energy machines and B-factories will be presented as well as recent results from g-2 and neutrino oscillation experiments. Also included in the program are related subjects like the hadron cross section measurement at e+e- colliders as well as a search for mu LFV decays. In addition, there will be several review talks on the future prospects.