Series consists of colour and black and white photographs (including negatives) accumulated by Nouwen, and colour slides taken by him and others. Photographs not taken by Nouwen were gathered mainly from friends and acquaintances through correspondence, over a period of approximately 30 years. The photographs were stored by Nouwen and his administrative assistant(s) in files, or displayed on one of several large bulletin boards Nouwen used in his office and photograph albums compiled. Some photographs that arrived with correspondence were kept in the General Files series with their letter of origin, while others which were not clearly attached to a letter were separated and added to this series.

Subject matter depicted in the photographs include professional portraits of Nouwen; Nouwen in both his professional and private capacities at: the Yale and Harvard Divinity Schools, and at L'Arche Daybreak (leading church services, at birthdays and Christmas celebrations), religious events (baptisms, first communions, ordinations and weddings); as well as his travels to Peru and Bolivia, the United States, France, and other countries; and with his family in the Netherlands both as a child and as an adult. Photographs also depict Nouwen's friends, their families, and L'Arche Daybreak assistants and core members. In addition, a large number of photographs in this series (approximately one fifth), document Nouwen's time spent in Germany with a flying trapeze troupe, The Flying Rodleighs.

Slides were taken by Nouwen of Martin Luther King, Jr’s civil rights march from Selma to Montgomery, AL, in March 1965; of the University of Notre Dame; vacations, including a trip to Greece; and of Nouwen with Rodleigh Stevens of The Flying Rodleighs in 1995.