David Koker was transported to the Vught Concentration Camp in 1943. During his time in Vught, David recorded on an almost daily basis his observations, thoughts and feelings. Unlike Anne Frank, who had a purposefully made diary book available in her hiding place, David did not have such a luxury in the camp. He wrote his entries on whatever scraps of paper he was able to find. Most of the paper was the rolling paper for cigarettes-available as the result of a lack of cigarette tobacco. Until early February 1944, David was able to smuggle some 73,000 words from the camp to his best friend Karel van het Reeve, a non-Jew. The part of the diary that David kept between 8 February 1944 and June 1944, when he was deported to Poland, did not survive the war.