This practical book focuses on the most recent advances in natural cycle and minimal stimulation in vitro fertilization (IVF). The volume presents the steps that need to be followed to successfully perform these techniques and covers all aspects and competences involved. The book provides information on physiology of folliculogenesis, ovulation, oocytes and luteal phase and based on this information on clinical practice of stimulation, ovulation induction and inhibition, follicle aspiration and luteal phase support in natural cycle and minimal stimulation IVF.In addition costs, risks, success rates and several treatment protocols are provided. An overview of large European, Japanese and American programs and the discussion of clinical cases will complete the coverage of the topic. This practical and easy-to-use guide is a valuable resource for all clinicians performing any kind of IVF techniques.