The workshop will focus on recent developments in the theory of representations of real Lie groups, in particular, the latest results in the unitary dual problem, the implementation and advances with the Atlas software, unipotent representations, Arthur packets, and connections with geometric tools such as Hodge theory. In addition there will be talks on emerging connections with analogous problems in p-adic groups, in particular related to the construction and behavior of local Langlands and local Arthur packets. We aim to bring together experts in these varied fields to share ideas and methods which should lead to further progress.