This book is also commonly referred to as "On Robustness and Fragility, Deeper Philosophical and Empirical Reflections." This book, written in 2007 by popular finance author Nassim Nicholas, focuses primarily on trading psychology. It explains in detail the enormous impact of unusual and unpredictable outlier occurrences, as well as the fascinating human proclivity to develop simple explanations for these events in retrospect. This book is extremely beneficial to trading psychology.