Introduction Case conceptualization refers to the process in which we make sense of a client's presenting concerns in the context of a theoretical framework. In other words, it refers to how we explain or understand the client's symptoms, personality characteristics, cognitions, feelings, and behaviors in light of a particular theory or integration of theories. “According to Sperry and Sperry (2012), case conceptualization can best be defined as “a method and clinical strategy for obtaining and organizing
on the figure of Albert Ellis and his Rational Emotive Therapy, which marked the beginning of cognitivism and similarities with Aaron Beck's Cognitive Therapy. Ellis was born in Pittsburgh (Pennsylvania) in 1913, in a Jewish family and died in Manhattan in 2007. He spent most of his time writing short stories, plays, novels, comic poetry, essays, and nonfiction books. A part of this facet was dedicated and involved in psychology. Next, I will present the studies and paths that led Albert Ellis to be