An electronic book reader includes a touchscreen display device disposed on a front surface of a housing. A storage medium stores image sequence information of plural images of a predetermined sequence. A contact surface portion is disposed on a side surface of the housing. A touch sensor detects contact with the contact surface portion. There is a CPU for display control of displaying the image sequence information on the touchscreen display device. An information processing device is connected between the storage medium and the CPU, for processing the image sequence information according to contact information from the touch sensor. The contact information is information of a rubbing movement in contact with the contact surface portion. The information processing device processes the image sequence information for forward or backward page turning according to a direction of the rubbing movement.