In this article Aesthetics in general is defined as an introduction to the study of everyday aesthetics in particular. We start from the expansion of aesthetic studies beyond art, to which they were restricted (poetics), towards new contexts of sensitivity in daily life (prosaic) on which they have expanded. Then the matrices of prosaic are exposed from a model proposed by Katya Mandoki to analyze the contexts of sensitivity that constitute the conditions of possibility of the aesthetic behavior of the individual in everyday life, from the combination of the different variables that make up the two vectors of the matrix.