A periegesis (Ancient Greek περιήγησις 'leading around') is a geographical survey or travelogue, sometimes also called a periodos or ' journey around' [sc. the world].
It is the name of several books:
Description of Greece (Ἑλλάδος περιήγησις, Hellados Periegesis), in prose, by Pausanias
Dionysius Periegetes of Alexandria's Οικουμένης περιήγησης Periegesis of the World, in hexameter, usually translated Survey of the World
Avienius's Latin translation of Dionysius Periegetes
Priscian's Latin translation of Dionysius Periegesis Prisciani, in hexameter
Pseudo-Scymnus's Scymni Chii Periegesis, correctly called Περίοδος του Νικομήδη