Heller’s work from this period, concentrates on themes such as what Marx means to the character of modern societies; liberation theory as applied to the individual; the work of changing society and government from “the bottom up,” and affecting change through the level of the values, beliefs and customs of "everyday life". 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).