Tourism is one of the world's fastest growing industries due to higher incomes, more leisure time, and lower travel costs. The internet has further fueled tourism growth by enabling online booking and allowing people to research destinations from home. This document discusses tourism from various perspectives including geographical, sociological, historical, managerial, and economic. It defines tourism as temporary travel for leisure or business purposes outside one's normal environment. Tourism is a broader concept than travel, as it includes both the journey and activities at the destination, for pleasure rather than employment reasons.