Travel and tourism sector is an industry which comprises of exchanging tourists within countries and provide them with all necessary facilities. The industry as a whole consists of travel sites, tourist spots, world heritage sites, travel modes like air, road and sea, travel infrastructure to reach those destinations, immigration, staying facilities, like hotels guesthouses, motels, etc. and the security and safety of tourists. The assignment is going to cover topics which describes travel and tourism sector as a whole, its characteristics, its connection with political changes, demand and supply, and the overall effects of tourism on social, economic, and environmental changes.