Karl Kovac is a senior lecturer in Construction and Built Environment at Sheffield Hallam University, as well as Joint Course Leader for BSc Construction Project Management. He has worked at all levels of the construction industry, starting out as a general builder before becoming a building surveyor and project manager in both public and private sectors. He has taught at both Further and Higher Education levels on HNC, HND and BSc Built Environment and Construction programmes, as well as MSc programmes. Roger Greeno has extensive practical and consultancy experience in the construction industry, in addition to lecturing at several colleges of further and higher education, and the University of Portsmouth, UK. He has also examined for City & Guilds, Edexcel, the Chartered Institute of Building and the University of Reading, UK. Roy Chudley was formerly Senior Lecturer in Building Technology at the Guildford College of Technology, UK. He is an established author of numerous respected construction texts.