How many books of poetry did the poet, who was published by Sheldon Dick, write?
Edgar Lee Masters Edgar Lee Masters (August 23, 1868 – March 5, 1950) was an American attorney, poet, biographer, and dramatist. He is the author of "Spoon River Anthology", "The New Star Chamber and Other Essays", "Songs and Satires", "The Great Valley", "The Serpent in the Wilderness" "An Obscure Tale", "The Spleen", "Mark Twain: A Portrait", "Lincoln: The Man", and "Illinois Poems". In all, Masters published twelve plays, twenty-one books of poetry, six novels and six biographies, including those of Abraham Lincoln, Mark Twain, Vachel Lindsay, and Walt Whitman.
Ruth Krauss Ruth Krauss (July 25, 1901 – July 10, 1993) was an American writer of children's books, including "The Carrot Seed", and of theatrical poems for adult readers. Many of her books are still in print.