Kappan's editor-in-chief talks with renowned scholar Susan Moore Johnson about her extensive research into the professional lives of public school teachers. For decades, studies have shown that teaching tends to be isolating work, with few opportunities for teachers to collaborate with and learn from each other or to play meaningful roles in school decision making. In her most recent book, however, Johnson describes the much more supportive professional culture she observed in a group of successful schools in a high-poverty urban district.