This work is a treatise upon the fascinating and valuable art of analyzing human character. It makes no attempt to teach, as such, the technical principles upon which this art is based. It is, rather, an attempt to familiarize the reader with the most important of these by the inductive method--by means of incidents and descriptions from our records and from the biographies of well-known men. Some effort has been made, also, to give the reader the benefit of the authors' experience and observation in vocational counsel, employment, and salesmanship.