Henry Van Dyke is the author of The Works of Henry Van Dyke: Out-of-doors in the Holy Land; impressions of travel in body and spirit (1920), The Works of Henry Van Dyke: The valley of vision; a book of romance and some half-told tales (1920), The Works of Henry Van Dyke: Days off and other digressions (1920), The Works of Henry Van Dyke: The unknown quantity; a book of romance and some half-told tales (1920), The Works of Henry Van Dyke: The blue flower (1920).