Abstract: A small, hand held, pocket size blackjack primer provides recommended actions for a blackjack player, depending upon the cards dealt to the player and the single open or face up card of the dealer. The device comprises an inner cylinder with a table of recommended actions therearound, and an outer cylinder with a single elongate window therein providing a view of a single row of recommended actions on the table at one time. A knob is provided at each end of the cylinder, to turn the table to an appropriate position. A position for the dealer's face up card and various combinations of the player's cards is provided adjacent the window. The player need only note the dealer's face up card and turn one of the knobs to position that value beneath the dealer card portion of the window, and then read the appropriate recommended action (hit, stand, double down, or split a pair) beneath his or her card value appearing in the window.