Drawings done in captivity by the first prisoner known to undergo “enhanced interrogation” portray his account of what happened to him in vivid and disturbing ways.

GUANTÁNAMO BAY, Cuba — One shows the prisoner nude and strapped to a crude gurney, his entire body clenched as he is waterboarded by an unseen interrogator. Another shows him with his wrists cuffed to bars so high above his head he is forced on to his tiptoes, with a long wound stitched on his left leg and a howl emerging from his open mouth. Yet another depicts a captor smacking his head against a wall.
Waterboarding

Credit…Abu Zubaydah, Courtesy Mark P. Denbeaux
In this drawing, the prisoner portrays himself as nude on the waterboard, immobilized as water pours down on his hooded head, his right foot contorted in pain. The image contrasts with some others seen in popular culture; an exhibit at the Spy Museum in Washington, for example, shows a guard pouring water onto the face of a prisoner who is neatly clad in what looks like a prison jumpsuit.
Mr. Zubaydah’s self-portrait also shows a design detail not present in most depictions — a drop-down hinge to tilt the prisoner’s head. Restraints hold down his wounded thigh.
The Senate Intelligence Committee study of the C.I.A. program concluded that waterboarding and other techniques were “brutal and far worse than the C.I.A. represented.” Its use induced convulsions, vomiting and left Mr. Zubaydah “completely unresponsive, with bubbles rising through his open, full mouth.”
In a now declassified account he provided his lawyer in 2008, Mr. Zubaydah described the first of what would be 83 waterboarding sessions this way: “They kept pouring water and concentrating on my nose and my mouth until I really felt I was drowning and my chest was just about to explode from the lack of oxygen.”
Stress Positions

Credit…Abu Zubaydah, Courtesy Mark P. Denbeaux
Accounts by detainees in different black sites have differed on how this method was used. In his illustration, Mr. Zubaydah shows himself nude and shackled at the wrists to a bar above his head, forced to stand on tiptoe.
In his account, as reported by his lawyers, he was still recovering from what the C.I.A. had described as a large wound in his thigh, and he tried to balance his weight on the other leg.
“Long hours went by while I was standing in that position,” he told his lawyers. “My hands were tight to the upper bars.”
Some guards, he said, “noticed the color of my hands,” moved him to a chair “and the interrogation vertigo resumed — the cold, the hunger, the little sleep and the intense vomiting, which I didn’t know whether it was caused by the cold, the ‘Ensure’ or the noise.” (The C.I.A. put its prisoners on liquid diets in its program of so-called learned helplessness.)
Short Shackling

Credit…Abu Zubaydah, Courtesy Mark P. Denbeaux
Mr. Zubaydah, who is not known to have formal art training, drew himself in a hood, shackled in the fetal position and tethered by a chain to a cell bar to constrict his movement. In granting the C.I.A. approval to use a technique similar to this, Jay S. Bybee, a former assistant attorney general, noted in an 18-page memo dated Aug. 1, 2002, that “through observing Zubaydah in captivity, you have noted that he appears to be quite flexible despite his wound.”
He also noted in the authorization, addressed to the C.I.A.’s acting general counsel at the time, John A. Rizzo, that the agency asserted that “these positions are not designed to produce the pain associated with contortions or twisting of the body.”
Walling

Credit…Abu Zubaydah, Courtesy Mark P. Denbeaux
This image emerged from Guantánamo with a black redaction box over Mr. Zubaydah’s depiction of the face of his interrogator.
It shows the prisoner’s captor tightly winding a towel around his neck as he smashes the back of his head against what Mr. Zubaydah recalled was a wooden wall covering a cement wall.
“He kept banging me against the wall,” he said of the experience, which he described as leaving him blind “for a few instants.” With each bang, he said, he would fall to the floor, be dragged by the plastic-tape-wrapped towel “which caused bleeding in my neck,” and then receive a slap on his face.
In a 2017 deposition as part of a lawsuit that was eventually settled, James E. Mitchell, a former C.I.A. contract psychologist who devised the techniques with a colleague, John Bruce Jessen, said walling was “discombobulating” and meant to stir up a prisoner’s inner ears. “If it’s painful, you’re doing it wrong,” he said.
Large Confinement Box

Credit…Abu Zubaydah, Courtesy Mark P. Denbeaux
In this drawing, Mr. Zubaydah is shaved, nude, shackled in such a way he cannot stand up and, by his account, is sitting on a bucket meant to serve as a toilet.
“I found myself in total darkness,” he said. “The only spot I could sit in was on top of the bucket, for the place was very tight.”
In his account, Mr. Zubaydah describes being confined in “a large wooden box that looked like a wooden casket.” The first time he saw it, guards were turning it vertical and a man in black clothes and a military jacket announced, “From now on, this is going to be your home.”
Mr. Zubaydah portrays himself in the drawings with both eyes. A photograph of him early during his time at Guantánamo shows him wearing an eye patch after the removal of an injured eye.
Small Confinement Box

Credit…Abu Zubaydah, Courtesy Mark P. Denbeaux
The small box is similar to the one on display at the Spy Museum where, during a visit, children could be seen crawling inside.
In his account, included in the Seton Hall report, Mr. Zubaydah describes his time in what he called “the dog box” as “so painful.” He adds: “As soon as they locked me up inside the box, I tried my best to sit up, but in vain, for the box was too short. I tried to take a curled position but to no vain, for it was too tight.” He was immobilized and shackled in the fetal position, as he described it, for “countless hours,” experiencing muscle contractions.
“The very strong pain,” he said, “made me scream unconsciously.”
Sleep Deprivation

Credit…Abu Zubaydah, Courtesy Mark P. Denbeaux
Mr. Zubaydah recalled that agents used a method of “horizontal sleep deprivation” that involved shackling him flat on the ground in such a painful position that it made it impossible to sleep.
The C.I.A. justified sleep deprivation by saying it “focuses the detainee’s attention on his current situation rather than ideological goals.” In approving this and other techniques in August 2002, Mr. Bybee said the C.I.A. had said it would not deprive Mr. Zubaydah of sleep for “more than 11 days at a time.”
In the Seton Hall study, Mr. Zubaydah recounted being deprived of sleep for “maybe two or three weeks or even more.”
“It felt like an eternity,” he added, “to the point that I found myself falling asleep despite the water being thrown at me by the guard.”
In this drawing, the prisoner portrays himself as lightly clothed.