This book is both a theoretical and practical resource for the post graduate students in pathology, laboratory technical staffs and the practicing cytopathologists. The book is divided in four parts: general cytology, clinical exfoliative cytology, laboratory techniques and fine needle aspiration cytology. In the first section, the author has described the updated current information on cell morphology, basic functions of cell, tissue and cell organization, cell division and its control, cellular response to injury, different types of cell death, basic principles of cytogenetics, and detailed account of neoplasm. In the second section the various aspects of clinical exfoliative cytology have been described. The chapters on cervical cytology provide complete information on normal cytology, cervical carcinogenesis, and the diagnostic criteria for various pre-neoplastic and neoplastic lesions of cervix, and cervical screening program.