Sub-series consists of bound volumes of materials and loose documents created and used by Nouwen for his teaching positions various academic institutions in both North America and Europe. This includes reading notes, preparation notes, lecture notes, typed lecture summaries, course handouts and syllabi, many of which are heavily annotated by Nouwen. It also includes lectures, letters, notes, assignments and course evaluations produced by Nouwen's students and teaching assistants. In addition to the course-specific bound volumes, there are two bound volumes that are labelled as "miscellaneous class material" that relate to Nouwen's early career from 1959 to 1976. This sub-series has been divided into 22 sub-sub series based on the course titles and subjects which Nouwen taught between 1961 and 1994, except for one sub-sub series involving the two-volume set of collected class materials mentioned above.
The sub-sub series are:
- Developmental Psychology
- Psychology of Personality
- Abnormal Psychology
- Psychology of Religion
- Pastoral Care
- Christian Spirituality
- Ministry to the Elderly
- Hospitality
- Discipline and Discipleship
- Prison Ministry
- Collected Class Materials
- The Life and Works of Thomas Merton
- Ministry and Spirituality
- Ministry in Non-Religious Institutions
- The Ministry of Vincent Van Gogh
- Compassion
- Education and Community
- Hesychasm
- Desert Spirituality and Contemporary Ministry
- Spiritual Direction / Spiritual Life and Spiritual Direction
- Introduction to the Spiritual Life
- Early Dutch course material