Different types of markers exist in matplotlib. Some of them are: 'o' for Circle, '*' for Star, '.' For Point , ',' for Pixel, 'x' for X , 'X' for X (filled), '+' for Plus, 'P' for Plus (filled), 's' for Square, 'D' for Diamond, 'd' for Diamond (thin), 'p' for Pentagon, 'H' for Hexagon, 'h' for Hexagon, 'v' for Triangle Down, '^' for Triangle Up, '<' for Triangle Left, '>' for Triangle Right, '|' for Vline, etc. This will different value to all data points.