This entry introduces the application of computer technologies in teaching and learning reading in a second language (L2). It traces the historical development of computer-assisted language learning (CALL) from early structuralist approaches to current cognitive, metacognitive, sociocultural, and new literacies perspectives. The entry discusses the theoretical foundations of CALL, emphasizing how these perspectives inform the design and implementation of CALL for L2 reading. It also highlights various technological applications, such as online reading tools, collaborative learning platforms, data-driven learning, and computer-adaptive reading programs. Additionally, the entry addresses future directions and challenges in CALL, including the potential of artificial intelligence (AI) and the need to manage cognitive overload. The continuous evolution of digital technologies underscores the importance of integrating new literacies with traditional literacy skills to enhance reading comprehension.