How can I achieve the classic and dramatic Rembrandt lighting style in my photography?

To achieve the classic and dramatic Rembrandt lighting style in Photography, position your light source at a 45-degree angle to your subject, slightly above eye level. This will create a triangle of light on the cheek opposite the light source, with a small triangle of shadow under the eye on the same side. Adjust the position and intensity of the light to control the contrast and mood of the image. Experiment with different angles and distances to achieve the desired effect.