When Karol Śliwka (1932–2018) opens his drawer, dozens of tools jump out: scissors, compasses, rulers, and knives. For Śliwka’s equally famous and elegant graphic designs are purely handmade. They are displayed on consumer goods and advertising posters, even became iconic symbols of the United Nations. His career was far from predestined: Having suffered a serious eye injury in a childhood accident and bound to take over his parents’ farm, Karol Śliwka’s turn to art could be seen as an act of rebellion. It has paid off, as proved not only by the numerous awards he won during his long career. Via home videos, “Signs of Mr. Plum” also gives us insights into his joyful marriage to an opera singer. Bartosz Mikołajczyk and Urszula Morga skilfully connect Karol Śliwka’s designs with contemporary history, capturing the mood of the 1960s and 1970s with a light hand and quick editing. Graphic design and biography merge into an accessible and highly amusing mixture.