This essay delves into two prominent counselling theories: Person-Centered Therapy and Cognitive Behavioral Therapy (CBT). It begins with an introduction to counselling, defining its collaborative nature and outlining the components involved in the counselling process. The essay then focuses on the person-centered approach, explaining its core principles of client autonomy, unconditional positive regard, empathy, and genuineness. It explores the strengths of this approach, such as its client-centered focus and promotion of self-discovery, while also acknowledging its weaknesses, including the potential for high optimism and the lack of structured treatment in some cases. The essay then transitions to CBT, detailing its focus on the interaction between thoughts, feelings, and behaviors. It explains how CBT helps clients identify and modify negative thought patterns and behaviors, providing examples of its application in managing conditions like anxiety and depression. The strengths of CBT, such as its structured approach and effectiveness in treating various disorders, are presented, alongside its weaknesses, including the potential for client difficulties in identifying negative thoughts and the structured approach not being suitable for some patients. The essay concludes by summarizing and comparing the two theories, highlighting their respective contributions to the field of counselling and their significance in protecting human mental health.