A user interface and method are disclosed for providing trading between a plurality of semi-fungible and non-fungible goods. A plurality of book axes are displayed in a single interface, each book axis representing a market for a particular good. Orders for goods are displayed as marks on the axes to display the relative value of the orders. A value axis is provided that relates the value of the goods from each market to each other. Thus, a single interface provides the means to relate the values of different semi-fungible goods. The value axis may be displayed in units of price, or a custom value designated by a user or pre-defined by the interface. Quantity information is represented in the interface through the display of a dimension of an order icon. Precise information about each order is displayed either in a panel view or a pop-up window.