Objective: Case formulation has been recognized to be a useful conceptual and clinical tool in psychotherapy as diagnosis itself does not focus on the underlying causes of a patient's problems. Case formulation can fill the gap between diagnosis and treatment, with the potential to provide insights into the integrative, explanatory, prescriptive, predictive, and therapist aspects of a case. Despite the acknowledgment that case formulation is a basic, necessary, and key clinical skill, it is still largely undertaught and underlearned. Some of the issues faced in the development of a case formulation include that of immediacy versus comprehensiveness, complexity versus simplicity, observation versus organization, and the need for cultural sensitivity toward each individual patient. Methods: The authors propose five aspects of case formulation beneficial to therapists and residents in training. Conclusions: The authors argue that case formulation remains an important and indispensable integrative tool for therapists and residents in training who are involved in psychotherapeutic interventions.