This book presents a linguistic approach to teaching reading in different subjects; an approach that focuses on language itself. Central to this approach is a view that knowledge is constructed in and through language and that language changes with changes in knowledge. As students move from elementary to secondary schools, they encounter specialized knowledge and engage in new contexts of learning in all subjects. This means that the language of secondary school learning is quite different from the language of the elementary years. Students need to develop specialized literacies (literacy relevant to each content area) as well as a critical literacy they can use across subject areas to engage with, reflect on, and assess specialized and advanced knowledge. This functional language analysis approach is shown using actual secondary social studies, science, and math textbooks and using a literary text.