A book of semi-autobiographical travel literature written by American humorist Mark Twain. It was written during 1870-71 and published in 1872 as a prequel to his first book The Innocents Abroad (1869). This book tells of Twain's adventures prior to his pleasure cruise related in Innocents Abroad.

"This book is merely a personal narrative, and not a pretentious history or a philosophical dissertation. It is a record of several years of variegated vagabondizing, and its object is rather to help the resting reader while away an idle hour than afflict him with metaphysics, or goad him with science. Still, there is information in the volume . . ." Thus begins Mark Twain's Prefatory to Roughing It.