The present publication focuses on the examination of literary diversity. One the one hand it deals with the litarature of various endangered languages (especially that of the Sami), and develops first considerations in constructing a comparative paradigm for mapping the vulnerability of literary processes. On the other, this books pays attention to thematic, formal and stylistic aspects of contemporary translingual literary productions. Special attention is here given to the latest developments in the Finnish literary field. The foci of endangerment and translingualism require addressing several other related literary phenomena such as literary ecology, écriture multiculturelle, code-switching or intercultural dialogism in present day world literature.