The prospects of altmetrics are especially encouraging for research fields in thehumanities that currently are difficult to study using established bibliometric methods. Yet,little is known about the altmetric impact of research fields in the humanities. Consequently,this paper analyses the altmetric coverage and impact of humanities-orientedarticles and books published by Swedish universities during 2012. Some of the mostcommon altmetric sources are examined using a sample of 310 journal articles and 54books. Mendeley has the highest coverage of journal articles (61 %) followed by Twitter(21 %) while very few of the publications are mentioned in blogs or on Facebook. Books,on the other hand, are quite often tweeted while both Mendeley’s and the novel data sourceLibrary Thing’s coverage is low. Many of the problems of applying bibliometrics to thehumanities are also relevant for altmetric approaches; the importance of non-journalpublications, the reliance on print as well the limited coverage of non-English languagepublications. However, the continuing development and diversification of methods suggeststhat altmetrics could evolve into a valuable tool for assessing research in thehumanities.