In this paper, I will attempt to summarize the article written by Sarah J. Egan and Paula Hine of the Curtin University of Technology, Australia. This study focused on the value that Cognitive Behavioral Therapy (CBT) has in treating perfectionism in 4 adults diagnosed with an anxiety disorder or depression. According to the case study, perfectionism can obstruct the treatment of psychological disorders (Shafron & Masell, 2001). CBT is used to examine and cure numerous psychological disorders, however, perfectionism has never been immensely explored and few studies of CBT have been of a controlled design nature.