Title: Lincoln Steffens
Content: Autobiography of Lincoln Steffens (NY: Harcourt, Brace, 1958) ; The Letters of Lincoln Steffens, edited by Ella Winter and Granville Hicks, 2 vols. (1938) 
Title: Lincoln Steffens
Content:  Lincoln Austin Steffens (April 6, 1866 – August 9, 1936) was an American investigative journalist and one of the leading muckrakers of the Progressive Era in the early 20th century. He launched a series of articles in McClure's, called "Tweed Days in St. Louis", that would later be published together in a book titled The Shame of the Cities. He is remembered for investigating corruption in municipal government in American cities and for his leftist values.
Title: Lincoln Steffens
Content: Pittsburgh is Hell with the Lid Off (1903) (Painting Jules Guerin/Lincoln Steffens) ; The Shame of the Cities (1904), online at the Internet Archive ; The Traitor State (1905) ; The Struggle for Self-Government (1906), online at the Internet Archive ; Upbuilders (1909), online at the Internet Archive ; The least of these: a fact story (1910), online at the Internet Archive ; Into Mexico and --Out! (1916), online at the Internet Archive ; Autobiography of Lincoln Steffens (1931) 
Title: Lincoln Steffens
Content:   Steffens began his journalism career at the New York Commercial Advertiser in the 1890s, before moving to the New York Evening Post. He later became an editor of McClure's magazine, where he became part of a celebrated muckraking trio with Ida Tarbell and Ray Stannard Baker. He specialized in investigating government and political corruption, and two collections of his articles were published as The Shame of the Cities (1904) and The Struggle for Self-Government (1906). He also wrote The Traitor State (1905), which criticized New Jersey for patronizing incorporation. In 1906, he left McClure's, along with Tarbell and Baker, to form The American Magazine. In The Shame of the Cities, Steffens sought to bring about political reform in urban 
Title: Lincoln Steffens
Content: Christopher Lasch, The American Liberals and the Russian Revolution (NY: Columbia University Press, 1962) ; Justin Kaplan, Lincoln Steffens: A Biography (NY: Simon and Schuster, 1974) ; Stanley K. Schultz, "The Morality of Politics: The Muckrakers' Vision of Democracy," The Journal of American History, vol. 52, no. 3. (December 1965), 527–547, in JSTOR ; Peter Hartshorn, I Have Seen the Future: A Life of Lincoln Steffens (Counterpoint, 2011) ; Doris Kearns Goodwin, The Bully Pulpit: Theodore Roosevelt, William Howard Taft, and the Golden Age of Journalism (Simon & Schuster, 2013) ; Stephanie Gorton, Citizen Reporters: S. S. McClure, Ida Tarbell, and the Magazine that Rewrote America. New York: Ecco/HarperCollins, 2020. 
Title: Lincoln Steffens
Content:  for U.S. food aid for Russia made his famous remark about the new Soviet society: "I have seen the future, and it works", a phrase he often repeated with many variations. The title page of his wife Ella Winter's Red Virtue: Human Relationships in the New Russia (Victor Gollancz, 1933) carries this quote. His enthusiasm for communism soured by the time his memoirs appeared in 1931. The autobiography became a bestseller leading to a short return to prominence for the writer, but Steffens would not be able to capitalize on it as illness cut his lecture tour of America short by 1933. He was a member of the California Writers Project, a New Deal program. He married the 
Title: History of Minneapolis
Content: Steffens, Lincoln, “The Shame of Minneapolis,” McClure’s (January 1903): 227–239. online 
Title: Lincoln Steffens
Content:  Lincoln Steffens is mentioned in the Danny Devito movie "Jack the Bear" (1993). Lincoln Steffens is mentioned in the 1987 novel The Bonfire of the Vanities by Tom Wolfe. Characters on the American crime drama series City on a Hill, which debuted in 2019, make numerous references to Lincoln Steffens. The "Autobiography of Lincoln Steffens" is the favorite book of one of the members of The Group in Mary McCarthy's 1963 novel. Autobiography of Lincoln Steffens is mentioned in the Joseph McElroy novel Women and Men.
Title: Lincoln Steffens
Content:  socialist writer Leonore (Ella) Sophie Winter in 1924 and moved to Italy, where their son Peter was born in San Remo. Two years later they relocated to the largest art colony on the Pacific Coast, Carmel-by-the-Sea, California. Ella and Lincoln soon became controversial figures in the leftist politics of the region. When John O’Shea, one of the local artists and a friend of the couple, exhibited his study of "Mr. Steffens’ soul", an image which resembled a grotesque daemon, Lincoln took a certain cynical pride in the drawing and enjoyed the publicity it generated. In 1934, Steffens and Winters helped found the San Francisco Workers' School (later the California Labor School); Steffens also served there as an advisor.
Title: William Simon U'Ren
Content: Murray C. Morgan, "The Tools of Democracy and the Woolly Rhinoceros Eaters," Seattle: Junior League of Seattle, March 1972. ; Lincoln Steffens, Upbuilders, Chapter 5.] New York: Doubleday, Page and Co., 1909. Lincoln Steffens, Upbuilders, Chapter 5.] New York: Doubleday, Page and Co., 1909. 

Question: what did lincoln steffens wrote?
Answer: The shame of the cities.