1809-1865 1858-1919 1882-1945 1908-1973 abraham autobiography biographies biography business casereports casestudies character crisismanagement economics executivebranch government headsofstate history johnson leadership lincoln newyorktimesbestseller newyorktimesreviewed nyt:combined-print-and-e-book-nonfiction=2018-10-07 politicalculture politicalleadership politicalprocess politicalscience politicsandgovernment presidents roosevelt theodore unitedstates