2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/215870I will briefly review the status of higher-order calculations for top-quark observables, comment on the need for improvements, discuss some of the recent theoretical advances, and present a few examples to highlight the role of top-quark observables in searches for signals of physics beyond the Standard Model.Parallel talk at ICHEP08, Philadelphia, USA, July 2008. 7 pages, LaTeX, 2 ps figures, 9 references addedHigh Energy Physics - Phenomenologytext