  Here we provide the contributions' abstracts published in a volume we edited
as a special issue in International Journal of Modern Physics B. The volume
deals with the recent progress in quantifying quantum correlations beyond the
generic notion of 'correlations in a quantum system'. The main goal of the
special issue is to provide authoritative reviews on selected topics discussed
in the field in the last few years. Nevertheless many articles contain
significant original research. The opening section of the issue is dedicated to
foundational aspects of quantum mechanics. The second section deals with
diverse quantum information insights into the analysis of quantum resources
(like entanglement and quantum discord). Many of the concepts presented in the
first part of the issue are applied to spin systems in the third section. The
last section of the issue is focused on the dynamics of quantum discord in open
systems and in quantum communication protocols.
