Title: The Half Book: He's Taking His Ball and Going Home, Author: Dan  Duffy
Title: Brother, Brother: A Memoir: A brother's search for his lost brother, Author: Dan  Duffy
Title: LeaderSELF: A Leadership Development Program, Author: Dan  Duffy
Title: Inside the Gretsch Guitar Factory 1957/1970, Author: Dan  Duffy
Title: Consultative Selling: A Model for Sales Success: An Introductory Sales Development Program, Author: Dan  Duffy