The Common Core State Standards accords great importance to close reading, but offers no specific guidelines for how it can or should be taught. This essay provides a critical review of existing instructional models of close reading and addresses issues related to their implementation in content area classrooms. It shows that current models of close reading offer different ways of engaging students in their interaction with complex texts, with some focusing on reading and rereading for understanding and others providing more intensive linguistic support. It argues that effective close reading practices must attend simultaneously to all key elements involved in the complex process of reading, including the reader, the text, the task, and the context, with a special emphasis on developing students' understanding of how language and other semiotic systems construct meaning, embed ideology, and structure discourse in genre- and discipline-specific ways. The essay demonstrates that the contention about what close reading is and how it could be implemented stems from its varied interpretations by scholars with different theoretical and epistemological beliefs about reading, language, text, literacy, and schooling. It further suggests that an awareness of the critical issues that have been raised about close reading can help teachers avoid potential pitfalls and maximize effectiveness when implementing the practice.