Dr Webster Mavhu is a Social scientist and Global Health practitioner with a PhD in Social science & Public Health from University College London UK, with complementary expertise in Anthropology and Development studies. He has served as the CeSHHAR Zimbabwe Deputy Director and Masculinities Research Program Director since 2012. He now has a joint appointment between CeSHHAR and Liverpool School of Tropical Medicine UK, where he teaches/supervises MSc and PhD students. Since 2005, Dr Mavhu has been conducting implementation research to inform policy and programming. He has run a number of trials and led process evaluations for a range of complex interventions working at the interface between vulnerability, sexual & reproductive health and HIV in Southern and Eastern Africa. He has also generated key evidence for scale-up of voluntary medical male circumcision (one of UNAIDS five HIV prevention pillars) in 15 priority countries in Africa. His focus now is on developing, piloting and rigorously testing gender-transformative initiatives.