The articles in this volume discuss the feasibility of distinguishing separate levels of structure in texts and describing the interplay between them. The focus is on three levels pertaining to crucial aspects of the structure of texts: a) the text processing level and the means it provides for a better understanding of texts; b) the level of the illocutionary structure, which determines the specific action character of a text and ensures its acceptability; c) the level of information sorting, which breaks down a text into information units and classifies these in terms of relative significance.