  In this review, intended for non-specialists and beginners, we recount the
current status of the theory of jet modification in dense matter. We commence
with an outline of the "traditional" observables which may be calculated
without recourse to event generators. These include single and double hadron
suppression, nuclear modification factor versus reaction plane etc. All of
these measurements are used to justify both the required underlying physical
picture of jet modification as well as the final obtained values of jet
transport coefficients. This is followed by a review of the more modern
observables which have arisen with the ability to reconstruct full jets, and
the challenges faced therein. This is followed by a preview of upcoming
theoretical developments in the field and an outlook on how the interface
between these developments, phenomenological improvements, and upcoming data
will allow us to quantitatively determine properties of the medium which effect
the modification of hard jets.
