Tobias Holck Colding closes out MIT's 18.100B Real Analysis course with a review session covering the semester's material ahead of the final exam. Running 67 minutes, the lecture revisits the core machinery of real analysis built up over the term: sequences and series, continuity, differentiation, and integration on the real line, along with the proof techniques used throughout the course. Colding works through the material at the board, pointing students back to the theorems and definitions most likely to appear on the exam and clarifying points that typically cause confusion. This is a recap rather than new material, so it assumes familiarity with the earlier lectures, but it works as a compact summary of the course's scope for anyone who has already worked through the material and wants to see it pulled together in one sitting.