The C2CR series provides a forum in which physicists from different, yet closely related, sub-disciplines get together and explore the interfaces and overlaps. The overlaps between various approaches to Dark Matter, in direct searches, in Cosmology and in Colliders are all too obvious. These issues are highlighted in the challenges faced by those who develop simulation packages for various physics processes.

An introduction to various issues related to the theory and phenomenology of massive neutrinos for the nonexpert, also providing a discussion of results in the field for the active researcher. All the necessary techniques and logics are included and topics such as supersymmetry are covered.