"The art of travel is only a branch of the art of thinking", Wollstonecraft wrote. Her journey and her comments on it are, therefore, not only sentimental but also philosophical. She uses the two modes to continue the critique of the roles afforded women and the progress of civilization that she had outlined in "A Vindication of the Rights of Men" (1790), "A Vindication of the Rights of Woman" (1792), and "An Historical and Moral View of the French Revolution". After overturning the conventions of political and historical writing, Wollstonecraft brought what scholar Gary Kelly calls "Revolutionary feminism" to yet another genre that had typically been considered the purview of male writers, transforming the travel narrative's "blend of objective facts and individual impressions ... into a rationale for autobiographical revelation". As one editor of the "Letters Written in Sweden, Norway, and Denmark" writes, the book is "nothing less than a revolution in literary genres"; its sublimity, expressed through scenes of intense feeling, made "a new wildness and richness of emotional rhetoric" desirable in travel literature.