  Full counting statistics is a fundamentally new concept in quantum transport.
After a review of basic statistics theory, we introduce the powerful Green's
function approach to full counting statistics. To illustrate the concept we
consider a number of examples. For generic two-terminal contacts we show how
counting statistics elucidates the common (and different) features of transport
between normal and superconducting contacts. Finally, we demonstrate how
correlations in multi-terminal structures are naturally included in the
formalism.
