Aikhenvald is a major authority on languages of the Arawak family, from northern Amazonia, and has written grammars of Bare (1995) and Warekena (1998), plus A Grammar of Tariana, from Northwest Amazonia (CUP, 2003), and The Manambu language of East Sepik, Papua New Guinea (OUP, 2008) in addition to essays on various typological and areal topics, and numerous edited volumes. Her other major publications include Evidentiality (OUP, 2004), Imperatives and Commands (OUP, 2010), Languages of the Amazon (OUP, 2012), The Art of Grammar (OUP, 2014), How gender shapes the world (OUP, 2016), Serial verbs (OUP, 2018), The web of knowledge: evidentiality at the cross-roads (Brill, 2021), I saw the dog: how language works (Profile Books, 2021), and A guide to gender and classifiers (OUP, forthcoming).