These color illustrations must be helpful in explaining the INRA procedure; a very radical bowel operation. INRA, an acronym of Ileo Neo-Rectal Anastomosis, is a new technique, developed by the client. To be able to produce these drawings, Guusje Bertholet had to thoroughly prepare himself. Apart from a preparatory study of the anatomy, in-depth insight into the INRA medical intervention was also vital. To aid in the documentation of this, photographs were taken during the operation in consultation with the surgeon.