Philosophiae Doctor - PhD / As an official and second language in Ghana, English is used as a medium of instruction in the Ghanaian educational setting, especially at the university level. Therefore, for Ghanaian students to go through their university education successfully, they should be able to demonstrate competence in the usage of English. However, time and again, there have been series of complaints from most English language teachers about the Ghanaian students’ lack of dexterity in writing cohesive and coherent texts. The present study, therefore, has as its aim to explore texture in first-year Ghanaian undergraduate students' essays (GUSEs). This focus is achieved through four main specific objectives. Thus, the study accounts for (1) the types of cohesive devices (2) the cohesive errors (3) the disciplinary variation in the type of cohesive devices and cohesive errors and (4) the thematic progression patterns in the essays of these first-year Ghanaian undergraduate students. To achieve these objectives, I use the Systemic Functional Linguistics perspective to text analysis, specifically the metafunction of texture as projected by Halliday (1967, 1970, 1985, 1994, and 2004), Halliday and Hasan (1976), Martin and Rose (2003) and Martin (2015). / 2023