Creativity can be described as discovering something novel that is also useful or valuable. There are different types of creativity such as primary, secondary, technical, inventive, innovative, and emergentive. The creative process typically involves preparation, incubation, insight, evaluation, and elaboration. Barriers to creativity include resistance to change, lack of initiative, and resource constraints. New ideas can come from basic research, production workers, salespeople, management, and external sources like magazines or competitors. Techniques for creative problem solving include brainstorming, heuristics, synectics, and value analysis. Entrepreneurs play an important role in innovation by analyzing opportunities, mobilizing resources, and exploiting changes.