PLAN  INTRODUCTION.. 2MAIN BODY.. 5CHAPTER 1: Understanding Written Corrective Feedback in Language Learning. 51.1-§. Concept, Definition, and Significance of WCF. 51.2-§. cognitive foundations and language acquisition theories. 61.3-§. Common errors and teacher-learner attitudes. 8CHAPTER 2: Forms and Practices of Written Corrective Feedback. 102.1-§. Explicit versus implicit feedback mechanisms. 102.2-§. Error codes and metalinguistic comments. 122.3-§. Peer review and digital tool integration. 14CHAPTER 3: The impact of written corrective feedback on students’ writing performance. 173.1-§. Empirical effects on writing improvement and revision. 173.2-§. Learner preferences and analytical evaluation of revised work. 183.3-§. Pedagogical challenges and strategic solutions. 21CONCLUSION.. 23REFERENCES. 29