This is the fourth volume of the Biography of Samuel Johnson. Samuel Johnson's Life has been documented in great detail by his friends, this biography being originally published by James Boswell, and then edited several times by other persons, such as John Croker, who have been friends of both Samuel Johnson as well as James Boswell. Already famous during his life time, Samuel Johnson's biography attracted considerable attention when it was published after Johnson's death, and continues to be read until today.