Despite numerous searches for physics beyond the Standard Model at high-energy colliders and low-energy experiments, no
compelling evidence has been found. If this continues to be the case after the LHC has started operating at a centre-of-mass
energy of 13 TeV or higher, low-energy precision physics will become even more important in constraining or finding physics
beyond the Standard Model. In this article a very basic overview is given over the interplay between high-energy and low-
energy observables in uncovering the nature of new physics. To this end an effective theory approach is discussed and examples
for its application are given.