In this presentation, I will summarise the relevance of higher-order QCD effects to Standard Model processes at the Large Hadron Collider (LHC). Special emphasis will be placed on the physics of the top quark and QCD jets. Many models look at the production of top quarks as well as QCD jets as interesting channels to evidentiate signals of new physics. A good theoretical control of Standard Model backgrounds is, thus, a fundamental prerequisite for a correct interpretation of the possible signals of new physics that may arise in these channels. Since the top quark and QCD jets play an important role in virtually every LHC analysis, proper modeling of their production is essential both for SM measurements and for beyond the Standard Model searches. Such modelling will become even more important for high luminosity measurements and at future colliders.