Dr. HUNG Chor Kin, EdwardEdwardDr. HUNG Chor KinWong, Steven K. H.Steven K. H.Wong2018-10-302018-10-302018In Ho, A. G. (Ed.) (2018). Advances in human factors in communication of design (pp. 116-120). Singapore: Springer.http://hdl.handle.net/20.500.11861/5386With the rise of cashier-less stores in both the East and West, there is a concern about what constitutes the appropriate signs and symbols in cashier-less stores that offer positive shopping experience. This paper is to shed light on this issue with a focus on semiotics especially Peirce’s theory of signs. It investigates the possibility of having a universal set of signs and symbols in cashier-less stores. It concludes that the ten classes of sign by Peirce are the solid foundation for the study, albeit they were developed more than a hundred years ago.enConference Paper10.1007/978-3-319-93888-2_13