A seating arrangement with improved seating comfort. In one embodiment, the seating arrangement is for a transportation vehicle. The arrangement includes seats at least having two levels adjacent to single-level seats. The multi-level seats include at least a bottom row of seats and a top row of seats. In one embodiment, the bottom row seats are on a floor; and there is an imaginary horizontal plane that is parallel to the floor, and that at least a part of the top row seats and at least a part of the bottom row seats intersect. The single-level seats include at least two rows, with at least one seat in each row being adjacent to the aisle, to allow passengers to access the single-level seats. In another embodiment, a seating arrangement includes only multi-level seats. In yet another embodiment, a computer-implemented method is applicable to the seats, such as allowing the display of a visual representation of a top-row seat and a bottom-row seat.