A reusable sequential information display device includes a printed substrate that includes on a display surface with indicia visualized under ambient light to form a first informational statement. Indicia formed of an ink visualized under light wavelengths of less than 420 nanometers is also applied to the display surface to form a second informational statement. A reader contains a light-emitting diode producing an emission wavelength of less than or equal to the wavelength required to visualize the invisible ink. The light-emitting diode, a battery and a switch for selectively forming an electrical circuit between the light-emitting diode and battery are located within a reader. A query-answer educational game is formed and optionally includes a light-emission timer and/or a sound synthesizer.