This textbook focuses on infertility and assisted reproductive technology. Many modern-day lifestyle issues have contributed to the rise in infertility and there has also been a rise in social pressure to beget a child. ART refers to treatments and procedures that aim to achieve pregnancy. ART is used to treat infertility. It includes fertility treatments that handle both a woman's egg and a man's sperm. This book comprised of 8 sections, which include investigating infertility, practical management of male infertility, intrauterine insemination, endocrinology in infertility, ovarian stimulation, basic laboratory procedures in assisted reproductive technology, abnormalities of pelvis, and miscellaneous, which are further divided into 91 chapters. Sections on polycystic ovarian syndrome (PCOS), male infertility, laboratory procedures in ART have been added to make it a comprehensive and easy daily reference book for all of us attached to this field of medicine. The book ends with very thought provoking chapters dealing with adoption, counseling, medicolegal and ethical aspects, third party and cross border reproduction. I hope this book will be helpful to the postgraduate students, gynecologists, embryologists, infertility counselors, and fertility specialists.