Leaves of Grass

Leaves of Grass is a poetry collection by American poet Walt Whitman. Though it was first published in 1855, Whitman spent most of his professional life writing, rewriting, and expanding Leaves of Grass until his death in 1892. Six or nine individual editions of Leaves of Grass were produced, depending on how they are distinguished. This resulted in vastly different editions over four decades. The first edition was a small book of twelve poems, and the last was a compilation of over 400.