This document contains a student's thesis statement portfolio. It discusses the improvements the student has made in their writing abilities at an English university. Specifically, it outlines how the student has improved at writing clear thesis statements that present a position with supporting reasons. It also discusses how the student has learned to better develop and support their ideas through providing credible evidence like statistics, personal examples, and sources. The portfolio aims to demonstrate the student has satisfied the university's writing skills requirement by showing the progress made in key areas of thesis statements, idea development, and organization through their collected essays.