The "Swedish-style" grid (picture crosswords) uses no clue numbers, as the clues are contained in the cells which do not contain answers. Arrows indicate in which direction the clues have to be answered: vertical or horizontal. This style of grid is also used in several countries other than Sweden, often in magazines, but also in daily newspapers. The grid often has one or more photos replacing a block of squares as a clue to one or several answers, for example, the name of a pop star, or some kind of rhyme or phrase that can be associated with the photo. These puzzles usually have no symmetry in the grid but instead often have a common theme (literature, music, nature, geography, events of a special year, etc.)