The document discusses tourist motivation and behavior. It defines a tourist and outlines internal and external motivation factors that influence tourist decisions. Internal factors include intrinsic motivation like satisfying psychological needs, as well as attitudes, perceptions, values and personality. External factors include place of origin, family, culture, and market influences. The document also describes different types of tourists based on motivation and classes based on travel party. Finally, it discusses Plog's model which categorizes tourists as allocentric, psychocentric or midcentric based on adventure-seeking and familiarity preferences.