Nurses at present are facing various personal, interpersonal, professional, institutional and socio cultural challenges in their professional performance. Dealing with these issues may not be always clear. The lack of one correct approach in addressing different contextual issues may lead to ethical dilemmas. Responding to this complex issues demand nurses to acquire comprehensive ethical knowledge and skills in various decision making process. Although teaching materials have a pivotal role to play in helping nurses in this endeavor, comprehensive books inclusive of all the topics in the curriculum is scarce in Ethiopia. Therefore, this lecture note is prepared to overcome the acute shortage of reference materials reflecting the national context and be used as a teaching material for nurses at various levels. The lecture note is divided in to five units. Unit one of this lecture note deals with the history of nursing, unit two about philosophy of nursing, unit three health and illness, unit four Ethico-legal aspects to nursing, and unit five communication and interpersonal relationships in nursing,