Journalistic genres share a common communicative objective: to inform and entertain readers through persuasion, this being a major function that pervades most journalistic texts. Therefore, their interpersonal metadiscourse should, forecastedly, contain a number of linguistic devices that comply this function, although sub-genres of opinion in English and Spanish may presumably present quantitative and qualitative differences, since metadiscourse is usually not only constrained by generic features but also by sociolinguistic habits changing from one language to another (Suau-Jiménez, 2010). It is important to identify and describe metadiscursive markers in order to establish a contrastive English-Spanish model that can be retrieved when necessary for linguistic, translation and/or written communication purposes. Dafouz-Milne (2008) has studied this topic in journalistic sub-genres of opinion in English and Spanish, and has concluded that both languages reveal similar rhetorical strategies to attain persuasion, hedges being the most frequently used category. She has analyzed both textual and interpersonal metadiscursive markers to contend, in line with Hyland (2005), that the essence of metadiscourse is interpersonal and not textual, since readers’ previous knowledge, their textual experience and processing needs, that is to say, the cognitive aspects, have to be taken into account (Dafouz- Milne 2008:97). Beke (2005), as well as Ferrari (2004), coincide in viewing the epistemic modality, expressed through hedges, as the main component of journalistic, scientific and academic metadiscourse. In this vein, we think that further research is needed in order to explore a more extensive and varied body of journalistic subgenres and either confirm or show differences that reveal other interpersonal metadiscursive and cross-linguistic uses, if any. My proposal is an attempt to analyse a number of English and Spanish journalistic sub-genres of opinion so as to contrast our results with those of the previously mentioned authors and also to verify whether particular generic features that the sub-genre caters for, influence the outcome of interpersonal markers in both languages. To this end, I have compiled a micro-corpus in English and Spanish from two prestigious specialized newspapers: Financial Times and Expansión, covering three journalistic subgenres: Editorial, Opinion and Analysis.The advantages of extracting data from micro-corpora for applied linguistic purposes have been claimed by Flowerdew (1993), who finds that specially designed corpora “are far more relevant to many sorts of language teaching than larger general corpora.” Partington (1998:5) also mentions relevant work performed on minicorpora. The framework to analyse interpersonal metadiscursive markers is based on Hyland & Tse’s (2004) model for academic texts, since, so far, it can be considered the most reliable and complete one. However, other works on metadiscourse will also be taken into account. I will particularly focus on the expression of persuasion through hedges and attitudinal markers, these two categories being central in many different genres and fields of specialization, according to several authors (Ferrari, 2004; Beke, 2005; Dafouz-Milne, 2008; Suau-Jiménez, 343 2005; Suau-Jiménez, 2011-in press; Mur-Dueñas, 2010). Results and conclusions will either confirm previous research on this topic or suggest differences that would bring new insights into the field of contrastive interpersonal metadiscourse.