Brian Cooke, MSc, is a former chartered civil engineer, quantity surveyor, and builder with extensive practical experience in construction. He was a Principal Lecturer in construction management at Liverpool John Moores University and has lectured on construction management topics in the UK and overseas. Peter Williams, MSc, is a former chartered builder and quantity surveyor with considerable practical experience in project management, estimating, quantity surveying and construction consultancy. He has worked for several major UK contractors and has held senior positions at Liverpool John Moores University, including Principal Lecturer and Head of Construction Management Development.