After completing his BSc in Mathematical Statistics and Operational Research at Exeter, Keith Anderson worked for some years as a systems developer, most recently at Deutsche Bank in Frankfurt. He then did an MSc in Investment Analysis at Stirling, where he won the Morley Prize as the top academically in his year. For his PhD at the ICMA Centre, Reading University, Keith showed that different ways of calculating the Price-Earnings ratio could significantly improve investor returns. He worked as a lecturer at Durham University Business School for two years before moving to York in 2008. Keith has written a number of books, papers and articles.