Preface -- Meiotic Non-disjunction - Insights into the Origin and Significance of Aneuploidy in Human Spermatozoa -- Damage to Sperm DNA Mediated by Reactive Oxygen Species: Its Impact on Human Reproduction and the Health Trajectory of Offspring -- Small RNAs: Their Possible Roles in Reproductive Failure -- The Sperm Epigenome, Male Aging and Potential Effects on the Embryo -- The Role of Uterine NK Cells in Normal Reproduction and Reproductive Disorders -- Seminal fluid Signaling in the Female Reproductive Tract: Implications for Reproductive Success and Offspring Health -- Role of Seminal Plasma in Human Female Reproductive Failure:  Immunomodulation, Inflammation and Infections -- Human Leukocyte Antigen-G Within the Male Reproductive System - Implications for Reproduction -- Prostasomes - Their Characterization: Implications for Human Reproduction -- The Paternal Contribution to Fetal Tolerance -- Index.