In this "At Last" essay, Susan Lytle addresses issues of teacher research, work that is shaped by and that shapes the complexity of teachers' knowledge and learning, and is based on the accumulation of robust and meaningful experiences leading to classroom expertise. Assuring her readers that teacher research is alive and well, even in the current politically charged atmosphere of scripted instruction and curriculum-driving mandated testing, Lytle presents the case for teachers' contributions to our understandings about classrooms and teachers' own understandings about how to make classrooms, teaching, and learning better.