This document discusses Abraham Maslow's hierarchy of needs theory. It provides an overview of Maslow's five levels of needs - physiological, safety, belonging, esteem, and self-actualization - and explains how unsatisfied lower level needs must be met before progressing to meeting higher level needs. The document also mentions that Maslow later expanded his hierarchy to include cognitive, aesthetic, and transcendence needs in addition to his original five levels. Examples are given of how Maslow's hierarchy can be applied to understanding motivation in daily life and business contexts. De-motivators and ways to improve motivation are also briefly discussed.