It was the third best-selling book of its era, behind [[Uncle Tom's Cabin]] and Ben-Hur.<ref>{{cite book |last1=Mattern |first1=MArk |year=2006 |title=Putting Ideas to Work: A Practical Introduction to Political Thought |publisher=Rowman & Littlefield |pages=154 }}</ref> | It was the third best-selling book of its era, behind [[Uncle Tom's Cabin]] and Ben-Hur.<ref>{{cite book |last1=Mattern |first1=MArk |year=2006 |title=Putting Ideas to Work: A Practical Introduction to Political Thought |publisher=Rowman & Littlefield |pages=154 }}</ref> |