He states in the book that the '4 hour of work' is just an arbitrary number. The title was used because his publisher was against his original title of 'Sellin

He states in the book that the '4 hour of work' is just an arbitrary number. The title was used because his publisher was against his original title of 'Selling Drugs for Fun and Profit' and being such a self promoter he figured that working only 4 hours is something that would grab attention.