This Manual provides a general yet detailed account of the current research in Portuguese linguistics by combining overview chapters and in-depth analyses of selected topics. It integrates diachronic and synchronic, standard and dialectal, adult grammar and L1 acquisition data and offers comprehensive information on specific features of Portuguese, using the methods and insights of present-day linguistic research. The overview chapters feature linguistic fields that significantly developed over the past decades in the context of research on Portuguese (e.g. language contact, prosody, the computational lexicon, forensic phonetics). The chapters covering particular topics in syntax, semantics and phonology deal with new empirical data and current analyses of well-known features of Portuguese such as the inflected infinitive, the pattern of clitic placement, the subjunctive, the reduction of atonic vowels, as well as newer issues (e.g. null subjects, complex predicates, the answering system, some dialectal phenomena). The volume will be unique as a state-of-the-art collection of papers conceived to be used as a Manual of Portuguese Linguistics in the academic context. The individual contributors rank among the best-known experts in the field.