This chapter discusses teacher preparation programs in the United States. It provides an overview of issues like declining enrollment in teacher education programs in the 1970s-1980s, major criticisms of programs, and reforms initiated in response. Approximately 1,300 universities offer teacher education, with reforms including expanding programs to 5 years. Alternative certification programs have also emerged due to teacher shortages in areas like STEM, special education and bilingual education. The chapter defines key terms and discusses teacher certification requirements in most states.