1- Ibrahim, Elham Abdel Rahman, 2013. Knowledge management using subliminal messages in interactive advertising design. Faculty of Applied Arts: Helwan University. Unpublished.
2- El-Bassiouni, Mahmoud, 2002. Art in the Twentieth Century. Cairo: Family Library, General Egyptian Book Organization.
3- El-Sayed, Alaa Mohamed, 2015. Study of the employment of subliminal messages and their applications in brand design. College of Applied Arts. Damietta University. unpublished.
4- El-Feki, Ismail Mohamed; Al-Tuwaijri, Muhammad bin Abdul Mohsen; Mansour, Abdul Majeed Sayed, 2001. Educational Psychology. Fourth edition. Riyadh: Obeikan Library
5- Khalifa, Abdul Latif Muhammad, 2000. achievement motivation. Cairo: Dar Gharib for printing, publishing and distribution.
6- Radwan, Mai Mahmoud, 2013. A design strategy to achieve the visual identity of printed awareness advertisements and their impact on the recipient. Faculty of Applied Arts: Helwan University. Unpublished.
7- Loftus, E. F. & Klinger, M. R., 1992. Is the Unconscious Smart or Dumb?. American Psychologist
8- Xin, Tao; Ye, Han You., 2018. The Application of Visual Illusion in the Visual 9- Communication Design. s.l., International Conference on Advanced Engineering and Technology.
9- Zekan, S. B. & Zekan, I., 2021. SUBLIMINAL MESSAGES IN ADVERTISING: DO THEY REALLY WORK?. Preliminary communication