Answer:
A travelogue is a film, book written up from a travel diary, or illustrated talk describing the experiences of and places visited by traveller. American writer Paul Theroux has published many works of travel literature, the first success being The Great Railway Bazaar.
Step-by-step explanation:
The main purposes of a travelogue are that travel is connected with builing social relationships. The more you travel, the more people you meet, and the more you communicate. This helps you build social relationships. Another purpose is that you get opportunities to learn.