This volume contains the papers of the "Groningen Workshop on Hellenistic Poetry 4: Apollonius Rhodius" (Groningen, 2-4 September 1998). During the workshop a first draft of the papers was discussed and commented on by an international group of specialists in the field of Hellenistic poetry. The volume contains a wide range of articles and thus provides a survey of current developments in research on Apollonius. Several articles show how recent developments in modern literary criticism or linguistics can lead to new or more refined insights in our understanding of Apollonius' poetry. Others show how a renewed analysis of selected passages can contribute to our overall view of this poet. This volume is the fourth of a series. Every two years a Workshop on Hellenistic Poetry takes place at the University of Groningen, the papers of which are published in the series "Hellenistica Groningana."