Dia Aziz Dia took his daily environment as the main subject of his representations and drawings. When first looking at his work, one can see that the artist has put social life on record from a geographical perspective of both landscape and architecture, and through the observation of costumes, events, habits and customs. But a more thorough reading of his collection of works reveals that Dia's other obsession lies in capturing light and colour as the essential axes for the composition and structure of his paintings. This is achieved by setting up an intense dialogue between both elements, in order to reflect the intensity of light amidst a nature that is overwhelmed by desert elements and continental climate characteristics.

Dia has patiently and persistently endeavoured to subdue his tools and techniques to endow plastic art with a long awaited presence within Saudi cultural life. Along with his fellow pioneering Saudi artists, Dia laid the foundation for anchoring art within the country's traditions and needs. He stands among the intellectuals who consider that studying, learning and diversifying research resources constitute the standards for deepening one's awareness and vision of local reality, once the artistic techniques and the rules of art itself have been mastered.