The book illustrates financial markets from the point of view of their subjectivity, namely by analysing one of the most prominent figures among market operators: the speculator. Whereas many textbooks or monographs are strictly devoted to the analysis of financial law or history, this book tells a remarkable story based on markets' boom-bust, expectations, banks' fragilities, market sentiment, desires, and dreams. In light of this, D'Alvia provides unique financial knowledge and delivers a book that constitutes an outstanding introduction to the topic of the speculator through its historical account and its evolution till modern days. Academics, lawyers, financial regulators, and retail and qualified investors should save a space for it on their shelves.