Simon Cross is Professor of Diagnostic Histopathology at the University of Sheffield and Honorary Consultant Histopathologist at Sheffield Teaching Hospitals NHS Trust. He was a medical undergraduate at Guy’s Hospital in London and then held training posts in histopathology at Nottingham, Cardiff and Sheffield hospitals. He is Editor of Underwood’s Pathology – the best-selling European undergraduate pathology textbook which won the BMA Best Student Textbook award in 2014. He is co-author of over 250 peer-reviewed research papers, mainly on breast and gastrointestinal pathology, and has a Hirsch index of 41.