Mary Sulakshini Immanuel is Former Dean, College of Nursing, Christian Medical College and Hospital, Vellore, Tamil Nadu. She is also Former Principal, College of Nursing, Wanless Hospital, Miraj and Former Dean, Regional Nursing Institute, Nur, Sultanate of Oman. In 1985, she was sponsored by CMC, Vellore to study at the Teacher’s College, Columbia University from where she obtained an M.Ed and completed her doctoral studies before returning to India. This textbook is based on her vast experience of teaching the foundations of nursing to students of BSc Nursing and general nursing.