Gab Kovacs is Professor in the Department of Obstetrics and Gynaecology, Monash University, Victoria, Australia. A Reproductive Gynecologist, he has 40 years of experience in the treatment of subfertility including IVF, donor insemination, ovulation induction and reproductive surgery. He has a passion for teaching and has edited 14 books for Cambridge University Press. Lois Salamonsen is Professor at the Centre for Reproductive Health, Hudson Institute of Medical Research, and Department of Molecular Biosciences, Monash University, Victoria, Australia. She was elected Fellow of the Australian Academy of Sciences and Honorary Fellow of the Royal Australasian College of Obstetrics and Gynaecology in recognition of her contribution to Women's Health Research. For 30 years, her research has focussed on the molecular events underpinning human endometrial function.