In 2012, Kohl published a collaborative book with Tom Oppenheim and the Stella Adler Acting Studio, of which he is Director, on advocating support for the arts, as necessary components of any decent public education. In conjunction with this book, "The Muses Go to School: Inspiring Stories about the Importance of Arts in Education," he interviewed artists such as Phylicia Rashad, Rosie Perez, Philip Seymour Hoffman, Moises Kaufman, Bill T. Jones, and Whoopi Goldberg, and educators such as Maxine Greene, Frances Lucerna, Lisa Delpit, and Steve Seidel.