# Reference guide of what is Stable Diffusion and how to Prompt
## Introduce
Stable Diffusion is a deep learning model for generating images based on text descriptions and can be applied to inpainting, outpainting, and image-to-image translations guided by text prompts. Developing a good prompt is essential for creating high-quality images.
A good prompt should be detailed and specific, including keyword categories such as subject, medium, style, artist, website, resolution, additional details, color, and lighting. Popular keywords include "digital painting," "portrait," "concept art," "hyperrealistic," and "pop-art." Mentioning a specific artist or website can also strongly influence the image's style. For example, a prompt for an image of Emma Watson as a sorceress could be: "Emma Watson as a powerful mysterious sorceress, casting lightning magic, detailed clothing, digital painting, hyperrealistic, fantasy, surrealist, full body."
Artist names can be used as strong modifiers to create a spec