Since 1990, Heller has been more interested in the issues of aesthetics in The Concept of The Beautiful (1998), Time Is Out of Joint (2002), and Immortal Comedy (2005).
Od 1990, Helerova se više interesovala za probleme u estetici u delima Koncept Predivnog (1998), Vreme je iščašeno (2002), i Besmrtna Komedija (2005).