Advice is a sort of checkers variant; each player has four types of piece: priests, lawyers, psychiatrists, and a single "citizen" whom the rest of the pieces try to shepherd to it's goal across the board. Pieces can move a single space or jump any other pieces any number of times. If a piece jumps a subordinate piece of the opponent, it is captured and removed from play. Priests beat lawyers, lawyers beat psychiatrists, and psychiatrists beat priests. Any piece can capture the citizen. The board is a 9x9 grid of squares; each player starts from a home corner and moves towards the opposite (opponents) corner. On every move, a piece must end up farther forward than it began.
A number of variants are provided, e.g. "Dictator" where there is no capturing, and one in which players may set up their pieces as they wish.
Created by a psychiatrist, the pieces are modeled "according to WH Sheldon's somatotypes" - "priests are round, comfortable, and cuddly, lawyers square and forceful, psychiatrists triangular, lean and edgy."