There are concerns regarding an increase in medication error that could be resulted in high health costs and poor patient outcomes. Clinical pharmacists would be a beneficial impact on the prevention and detection of medication-related problems by involving the health care team and sharing responsibilities, especially about medication utilization. Almost sixty years ago, specialization in clinical pharmacy was defined in the United States of America and currently available in the health-system of many countries. Clinical pharmacy adopts the philosophy of pharmaceutical care in its services and aims to achieve the most ideal patients’ clinical outcomes as the primary purpose. Clinical pharmacy services can be provided in all healthcare settings such as hospitals, community pharmacies, outpatient clinics, nursing homes, home care services. Clinical pharmacy services can be sorted in some major topics, such as drug information, patient counseling and education, comprehensive medication management, medication reconciliation, medication review, prevention and detection of medication-related problems, therapeutic drug monitoring, and preventive health services. Focusing on who the clinical pharmacist is, this review was summarized the general concept of clinical pharmacy and clinical pharmacists’ education, workplace, and services. This review is expected to be a useful resource for researchers and practitioners and health care system developers during the implementation and development of clinical pharmacy services in our country.