The cover of the book 'Jailed for Possession: Illegal Drug Use, Regulation, and Power in Canada, 1920-1951' by Catherine Carstairs. The cover features a sepia-toned image of a person's arm and hand, with a focus on the hand, which is resting on a surface. The title of the book is prominently displayed at the top in a stylized font, with the subtitle 'Illegal drug use, regulation, and power in Canada, 1920-1951' below it. The author's name, Catherine Carstairs, is visible at the bottom of the cover.