The document summarizes the author's internship experience at Sanofi in the Clinical Studies Unit (CSU). It discusses the various projects and tasks completed during the internship, including data analysis, visualization, and tool development. The internship provided exposure to different elements of the CSU and insight into the roles and responsibilities of CSU management. It was a hands-on learning experience that developed the author's problem-solving, analytical, and presentation skills. Overall, the internship helped the author gain industry awareness and perspective on potential career paths.