an alternative to the dot book is the coordinate sheet. like dot books, coordinate sheets are small and meant to be worn around the neck on a lanyard. coordinate sheets are set up as a list of the member's places on the field, given in coordinates (such as 5 steps inside the right 45 yard line and 2.25 steps in front of the home hash), each "set" numbered. also on the sheet is the number of steps it takes to go from one set to another, but this isn't written plainly. set 1 always has a "0" by it. if it should take sixteen counts to move to the next set, a "16" will be placed next to set 2's coordinates. if it should take eight counts to move to the third set, a "24" is next to set 3's coordinates.