Many works on linguistic typology deal in some detail with one or more particular grammatical topics without clearly demonstrating how these relate to other categories or construction types. The Essence of Linguistic Analysis by R. M. W. Dixon presents a framework which connects individual topics in a cogent and coherent way, showing their dependencies and locating each in its place within the overall tapestry of a language. A clear distinction is made between semantic roles and syntactic functions. And it is held that the basic constituents of a language are lexical elements. Grammatical...

Knowledge can be expressed in language using a plethora of grammatical means. Four major groups of meanings related to knowledge are Evidentiality: grammatical expression of information source; Egophoricity: grammatical expression of access to knowledge; Mirativity: grammatical expression of expectation of knowledge; and Epistemic modality: grammatical expression of attitude to knowledge. The four groups of categories interact. Some develop overtones of the others. Evidentials stand apart from other means in many ways, including their correlations with speech genres and social environment....

This is the first in-depth typological research into how the grammatical encoding of information source, that is, evidentiality, functions in Qiangic languages.