Content-area literacy involves the use of research-based learning strategies that help students effectively and efficiently gain content knowledge. Its use is fundamental to all content areas, not just to those that rely heavily on printed materials. One of the major goals of content-area instruction is to produce critical thinkers and problem solvers, and content-area literacy is a tool that teachers use to help students achieve this goal. Through this author's teaching experiences, she (Ming) learned about literacy strategies that are useful in art, mathematics, music, and physical education. Thus, in this article, she discusses the importance of using literacy in content-area instruction. Specifically, she talks about how literacy strengthens students' language arts skills, shares 10 content-area literacy strategies that can be integrated into the four content areas, and provides specific examples of what they would look like in each area. (Contains 11 tables.)