2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6728Extensive spectroscopic studies of stars with and without planets have concluded that stars hosting planets are significantly more metal-rich than those without planets. More subtle trends of different chemical elements begin to appear as the number of detected extrasolar planetary systems continues to grow. I review our current knowledge concerning the observed abundance trends of various chemical elements in stars with exoplanets and their possible implications.12 pages, 6 figures, to appear in IAU Symposium 219: Stars as Suns, Activity, Evolution and Planets, eds: A. K. Dupree and A. BenzAstrophysicstext