"To an Unknown Lady" is an epistolary work, unreleased in Bulgaria so far. It is different from the other works by the author, mostly because of its intimate tone, sincerity and the deep feeling that gives it uniqueness. The writer addresses all the women who are personified through the beautiful Unknown, and answers the questions they might ask: about love, coquetry, moral and intellectual improvement, about relationships with men, children and family, about the pleasures of spirit and body. Thematically circumscribed by a series of letters, this variegated array of subjects is ostensibly geared to prepare the prospective spouse for a successful marriage.