• Walt Whitman, in full Walter Whitman, is an American poet, journalist, and essayist whose verse collection Leaves of Grass, first published in 1855, is a landmark in the history of American literature.• His Notable Works: - Calamus,- Crossing Brooklyn Ferry,- Democratic Vistas,- Drum-Taps,- I Sing the Body Electric,- O Captain! My Captain!,- Song of Myself,- Specimen Days & Collect,- Starting from Paumanok.Source: Encyclopaedia of Britannica.