The Doctoral Thesis Phonological Iconicity in Expressive and Operative Texts: Contrastive Perspective is devoted to the study of phonological iconicity as a linguistic and semiotic phenomenon occurring at different levels of expression. Iconicity is investigated as an aggregate of universal tools that is increasingly applied to transcend national and cultural borders in communication. The phenomenon is studied within the Phonosemantic approach to the study of language considering that Phonosemantics deals with the development of the theoretical basis for the study of sound iconic language systems, that is, sound imitative and sound symbolic systems, providing the tools for summarizing, generalizing and classifying the existing findings in the field. The present research is the first attempt to develop a comprehensive framework for contrastive analysis of phonological iconicity in English-Latvian-Russian language combination. In the course of research, a new classification of the types of phonological iconicity is developed reconciling the linguistic and semiotic approaches to the categorization of this phenomenon, a special type of phonological iconicity – contextual phonological iconicity – is proposed, and the conceptual framework to be used in further research on phonological iconicity is elaborated.