Abstract: In this paper, I put forward a philosophical analysis of some works by Martin Creed. I suggest that all the works under consideration are works of conceptual art as well as of installation art, and that they display significant expressive properties. The paper is structured as follows: in the first section, I claim that the works are ontologically similar and that they all appear problematic, because it is not very clear how they should be appreciated as artworks; in the second section, I argue that the works belong to the genre conceptual art, that they are presented for intellectual appreciation, and that this is compatible with the fact that they also have expressive properties; in the third section, I submit that the works also belong to the category installation art and I explain what expressive properties they display. In the conclusion, I remark briefly on the interaction between the intellectual and aesthetic appreciation of Creed’s works.