Abstraction is a philosophical, artistic, computer and psychological concept. In psychology, it is the ability to mentally construct conceptual objects, i.e. objects that do not exist in reality. It is one of the essential points of difference between homo sapiens and other animal species. In computer science, it is a representation in a high-level language, which brings together in an intelligible way a large number of low-level operations, we speak of an “abstraction layer”. In art, it is about representations that do not seek to represent reality. In philosophy, it is the production of a concept. My creative work often concerns abstraction, in these different meanings.