Can psychological factors effectively predict entrepreneurial performance? Drawing upon studies of over 700 entrepreneurial subjects in 10 different samples, Miner settles the issue: yes, they can. He identifies four kinds of people who are capable of achieving entrepreneurial success--but notes that to actually achieve success, they must follow a career route that fits their personalities. Miner's new book is thus a detailed scholarly report on an extensive 20-year research program that focuses on psychological predictors of entrepreneurial activity and success, and a carefully devised, solidly grounded theory to explain why his observations are true. He also discusses the implications for personal career development, entrepreneur selection, entrepreneurship development programs, the assessment of entrepreneurial talent, and related topics crucial not only to entrepreneurs and would-be entrepreneurs themselves, but to their various stakeholders including those with investments in them.