This volume provides a detailed investigation of perfects from all the branches of the Indo-European language family, in some cases representing the first ever comprehensive description. Thorough philological examinations result in empirically well-founded analyses illustrated with over 940 examples. The unique temporal depth and diatopic breadth of attested Indo-European languages permits the investigation of both TAME (Tense-Aspect-Mood-Evidentiality) systems over time and recurring cycles of change, as well as synchronic patterns of areal distribution and contact phenomena. These possibilities are fully exploited in the volume. Furthermore, the cross-linguistic perspective adopted by many authors, as well as the inclusion of contributions which go beyond the boundaries of the Indo-European family per se, facilitates typological comparison. As such, the volume is intended to serve as a springboard for future research both into the semantics of the perfect in Indo-European itself, and verb systems across the world's languages.