This article studies verbo-pictorial metaphors in some informative Persian posters, based on Forceville's (1994 and 1996) cognitive approach to multimodal metaphors. In finding the appropriate required data, among eighteen informative categories in Hafteh Informative Poster Website, five items were selected. For each item (total N=236) one poster was selected. The research questions involve: How verbo-pictorial metaphors do appear in Persian posters? How do the existing pictures and texts interact to represent multimodal metaphors in the selected informative posters? And finally, what is the pragmatic effect of their interaction on conveying the poster message? The results show that the selected posters contain one or more cognitive mechanisms like metaphor, metonymy, symbol, and image schema. The verbal and pictorial metaphors have complementary, though proportionately various, roles in conveying the informative messages of posters. The similarity of source and target domains of verbo-pictorial metaphors are realized either through physical resemblance, filling a schematic slot unexpectedly, and simultaneous cuing of these concepts. Moreover, this study shows that metaphors of this small corpus play informative function in the posters. The pragmatic role of metaphors is performed by both pictorial and verbal modes, though the anchorage role of the text used in these posters is various and cannot be identified clearly.