A style in Art can refer to either the aesthetic values that are followed in the process of choosing what to paint (and how) or to the actual physical techniques that the artist uses in order to produce the painting. An aesthetic movement -such as Realism, Romanticism, Impressionism, etc- can promote an entire world view, a way of interpreting reality and of deciding which parts of it are worth observing and/or emphasizing, as well as a sense of just how much the individual's emotions get to be expressed. Some of those movements are closely associated with certain techniques (Pointillism, for example) while others are more flexible in their choices (like Surrealism) and yet each one has a characteristic "look" that becomes more and more distinctive as it develops until it reaches a saturation point, thus paving the way... for the next one.
