The bible for successful speculators, written on speculation, by a successful speculator. This is a combination of what speculation is, along with some thoughts on life, business, society, and language. An excellent thought starter.
Also contains Watts classic Thoughts on Life - short aphorisms of timeless wisdom. The original source for classic market wisdom such as: "Make your theories fit your facts, not your facts your theories", "Look after the principal; the interest will look after itself", and "If a speculation keeps you awake at night, sell down to the sleeping point." This book is a must for any listener of classic investing wisdom.