All four of these classic self-help works have stood the test of time and are enjoyed by people all over the world to this day.
The Science of Getting Rich is divided into 17 short chapters that explain how to overcome mental barriers (through positive thinking) and how to attract wealth through creation rather than competition.
Self Reliance contains the most thorough statement of one of Emerson's recurrent themes: the need for each individual to avoid conformity and false consistency and follow their own instincts and ideas.
Acres of Diamonds details the idea that in this country of ours, every man has the opportunity to make more of himself than he does in his own environment, with his own skill, with his own energy, and with his own friends (expressing the idea of positive relationships).
A Message to Garcia expresses the value of individual initiative and conscientiousness in work.