This is a memo detailing the visit of a three-person behavioral interrogation team's visit to Abu Zubaydah's holding compound and "evolving" interrogation room. It includes details of the team's suggestions for cell modifications, including "the painting of the room white," "the building of a vestibule to provide added control of potential orientation cues," and"the sanding of the holding cell bars to reduce AZ's ability to stimulate his sensorium," among others.