Foreword -- Preface.- Past and Present: Evolution of ideas.- Physiology: The ante-hypophysis - ovarian follicle couple.- Follicle Stimulating Hormone (FSH).- Luteinizing hormone (LH).- Human Chorionic Gonadotropin (hCG).- Which Gonadotropin? FSH. LH. hCG. Practical considerations.- Prior to the stimulation -- Looking for other infertility factors.- Assessment of the patient's status.- Assessment of the ovarian status.- The Monitoring; Hormonal (functional) monitoring; Sonographic (morphological) monitoring; Monitoring post-hCG?.- The Triggering of Ovulation.- The ovulatory process.- Spontaneous triggering of ovulation -- Therapeutic triggering of ovulation.- The luteal phase support.- Mono- and pauci- follicular stimulation.- Multi-follicular stimulation.- The Prevention of Complications.- Multiple pregnancy.- The ovarian hyperstimulation syndrome.- Classic Stimulation.- mono-, bi- or pauci- follicular.- The objectives.- The means.- The Stimulation of the ovulatory Patient.- Monofollicular stimulation.- Bifollicular stimulation.- Paucifollicular stimulation.- The Stimulation of the anovulatory patient.- The diagnosis of anovulation; Hypogonadotropic anovulation -- Normogonadotropic anovulation -- Hypergonadotropic anovulation.- Multifollicular Stimulation.- Past and present.- Handling the multifollicular stimulation.- Poor ovarian responses -- Conclusion.