Gillian Leng is the Deputy Chief Executive at NICE and a visiting professor at King’s College London. Gillian trained in medicine at Leeds, and studied for an M.D. at Edinburgh University. She was involved in the Cochrane Collaboration as it became established, and still contributes as an editor. She worked as a consultant in public health medicine before moving to NICE in 2001. At NICE, Gillian led the set-up of several major programmes, including the clinical guidelines programme, implementation, social care, quality standards and indicators and the NHS Evidence portal. Gillian chairs the national Shared Decision Making Collaborative and sits on several national boards. She is actively involved in research into quality improvement, and is a trustee at the Royal Society of Medicine, and chair of the Guidelines International Network.