There are many types of brushes and you should always choose the right brush for the project: Small brushes for small areas or details, large brushes for large areas.
Some brushes are flat, round, square, thick, thin, etc. Using the right brush for what you are trying to do will make the painting easier. Never overload the brush – it is usually a good idea to test it first on a scrap of paper. Choose your colors and think about your design before you start painting. This video shows decorative painting artist and educator Prudy Vannier as she does some brush strok technique like comma strokes, S-strokes and easy border techniques