Brush techniques refer to the various methods artists use to apply paint or other mediums to a surface. These techniques can create different textures and effects, enhancing the overall look of a piece. For example, using a fan brush can produce soft, feathery strokes, while a flat brush is great for bold, straight lines. Another popular technique is dry brushing, where a dry brush is used to apply a small amount of paint, resulting in a scratchy, textured appearance. Artists often experiment with these techniques to find their unique style and to bring their creative visions to life.