A gesture drawing is a laying in of the action, form, and pose of a model/figure. Typical situations involve an artist drawing a series of poses taken by a model in a short amount of time, often as little as 10 seconds, or as long as 5 minutes. Gesture drawing is often performed as a warm-up for a life drawing session, but is a skill that must be cultivated for its own sake. In less typical cases the artist may be observing people or animals going about normal activities with no special effort to pause for the artist. For example, drawing from people on the street, performers, athletes, or drawing animals at the zoo. Purpose The primary purpose of gesture drawing is to facilitate the study of the human figure in motion. This exploration of action is helpful for the artist to better understand the exertions of muscles, the effects of twisting on the body, and the natural range of motion in the joints. Basically, it is a method of training hands to sketch what the brain has already seen. Staying "focused" means sustained concentration. Gesture drawings may take as long as two minutes, or as short as five seconds, depending on what the focus of the exercise is. The practice allows an artist to draw strenuous or spontaneous poses that cannot be held by the model long enough for an elaborate study and reinforces the importance of movement, action, and direction, which can be overlooked during a long drawing. Thus, an approach is encouraged which notes basic lines of rhythm within the figure. The rapidity of execution suggests an aesthetic which is most concerned with the essence of the pose, and an economy of means in its representation, rather than a careful study of modeling of light on the form. For some artists, there is a calisthenic logic: just as an athlete warms up before exercising or participating in sports, artists use gesture drawing to prepare themselves mentally and physically for a figure drawing session. The fast pace of gesture poses helps an artist "loosen up" to avoid a stiff drawing style. The artist who undertakes gesture drawing also receives the benefits of self-training their drawing ability. This kind of very rapid drawing of the figure builds (through the act of frequent repetition) an instinctive understanding of human proportions which may aid the artist when executing more extended works.