Every day, living creatures make decisions. Whether decisions are big or small, they must be made. As decisions are made, there is a process that goes through. Different types of thinking styles and thought processes are available. The way one feels, believes, attitudes and related ideas can play an important role in one's thinking style. Various methods and styles of thinking are used. In this article, the topic is to discuss three different types of thinking styles. The three different styles covered will be creative, pessimistic and optimistic thinking. Creative, pessimistic and optimistic thinking are three different ways in which a person can critically analyze any situation. This article will compare and contrast the three different styles and discuss how each affects the critical thinking process. It will also include critical thinking in the decision-making process by incorporating discussion of workplace examples that involve the three different types of thinking styles examined. After reading this article, one will have a complete understanding of these thinking styles and the decision-making process. Finally, the way one can think and how this contributes to one's decision-making process will also be evident. Many types of thinking are used with critical thinking. Among these types of thinking, creative thinking has shaped the world as it is today and what it will evolve into in the future. Children are born as creative thinkers. However, if one does not improve and develop their creative skills, the potential for creative thinking can diminish throughout life. “Creative thinking is creating something new or original. It involves skills of flexibility, originality, fluency, ima...... middle of document ......In conclusion, this article has examined three different methods of thinking and thought processes. The three different types of thinking styles discussed were creative thinking, pessimistic thinking, and optimistic thinking. Each of these styles has been compared and contrasted with each other. Different thinking styles, including workplace examples and critical thinking processes, were clearly discussed. Works Cited Edgar, DW, Faulkner, P., Franklin, E., Knobloch, NA and Morgan, AC (2008). Creative thinking: opening up a world of thought. Techniques: Connecting Education & Careers, 83(4), 46. Retrieved from EBSCOhost. Whitt, J. (2006). Merge thinking styles. Training, 43(1), 45. Retrieved from EBSCOhost.http://www.mpaa.org/ratingshttp://www.jobdig.com/articles/1147/Using_Pessimism_to_Your_Advantage.htmlhttp://www.tms.com.au /tms10z.html