Oil painting is a traditional painting method that uses pigments suspended in a drying oil as the medium. The oil provides a slow drying time and allows the artist to manipulate the paint to create textures and layers. Here are some common techniques used in oil painting:

1. Layering: This involves applying multiple thin layers of paint, allowing each layer to dry before adding the next. This results in a luminous, transparent effect.

2. Blending: Softening the transition between two colors by mixing them together on the canvas with a brush.

3. Glazing: A thin layer of translucent paint is applied over a dry underpainting to change the hue, value, or chroma.

4. Impasto: The thick application of paint with a palette knife or brush, creating a textured surface with visible brush strokes.

5. Dry brushing: A technique where paint is lightly dragged across the surface, using a dry brush to create a soft, gritty texture.

6. Sgraffito: A method of scratching through a wet or dry layer of paint to reveal the color or texture underneath.

These techniques can be combined and layered to create a variety of effects and styles in oil paintings.