This new book, Strategic Decision Making, represents a refreshing and challenging view of our knowledge and practice of how leaders and managers make decisions and need to make them in the current era of unprecedented disruption. Bringing to bear ideas of 'wicked problems' which challenge the traditional strategic analysis techniques, and expanding on the implications of volatile, uncertain, complex and ambiguous (VUCA) times, the authors introduce, explain, and evidence an approach for this century. With due evaluation of classic strategy tools, and both 'top down' and ' middle out' approaches to strategic decision making, an alternative conceptualisation is developed round 'discovery led' strategy. This is built around three ideas : framing, experimenting and scaling, which are but brought to life with contemporary examples and vignettes of companies and decisions which have started from big decisions, with small test implementations, which when successful, are expanded into businesses we recognise in the 21st century. A recommended alternative take for managers and students alike.