With the advent of Run II of the LHC, high energy physics is exploring a new frontier in physics at the smallest scales and searching for ever-more subtle deviations from the Standard Model. Associated with the great experimental progress have been matching theoretical advances allowing us to predict precisely the predictions of the Standard Model in order to definitively search for its possible breakdown. In this talk we review the recent progress in precision calculations for the LHC, focusing on processes with final-state jets. New ways of thinking about the problem based on effective field theory have led to unexpected insights, and we review both these new theoretical ideas and the phenomenological results to which they have led.
