for personal spiritual and psychological growth. Characteristic of the mythopoetic men's movement is a tendency to retell fairy tales and engage in their exegesis as a tool for personal insight. Using frequent references to archetypes as drawn from Jungian analytical psychology, the movement focuses on issues of gender role, gender identity and wellness for modern men. Advocates would often engage in storytelling with music, these acts being seen as a modern extension to a form of "new age shamanism" popularized by Michael Harner at approximately the same time. Among its most famous advocates were the poet Robert Bly, whose book Iron John: A Book About Men was a best-seller, being an exegesis of the fairy tale "Iron John" by the Brothers Grimm. The mythopoetic men's movement spawned a variety of groups and workshops, led by authors such as Bly and Robert L. Moore. Some serious academic work came out of this movement, including the creation of various magazines and non-profit organizations. Academic reception and criticism Campbell's approach to myth, a genre of folklore, has been the subject of criticism from folklorists, academics who specialize in folklore studies. American folklorist Barre Toelken notes that few psychologists have taken the time to become familiar with the complexities of folklore, and that, historically, Jung-influenced psychologists and authors have tended to build complex theories around single versions of a tale that supports a theory or a proposal. To illustrate his point, Toelken employs Clarissa Pinkola Estés's (1992) Women Who Run with the Wolves, citing its inaccurate representation of the folklore record, and Campbell's "monomyth" approach as another. Regarding Campbell, Toelken writes, "Campbell could construct a monomyth of the hero only by citing those stories that fit his preconceived mold, and leaving out equally valid stories... which did not fit the pattern". Toelken traces the influence of Campbell's monomyth theory into other then-contemporary popular works, such as Robert Bly's Iron John: A Book About Men (1990), which he says suffers from similar source selection bias. Similarly, American folklorist Alan Dundes is highly critical of both Campbell's approach to folklore, designating him as a "non-expert" and outlining various examples of source bias in Campbell's theories, as well as media representation of Campbell as an expert on the subject of myth in popular culture. Dundes writes, "Folklorists have had some success in publicising the results of our efforts in the past two centuries such that members of