This bibliography identifies over 5,000 monographs (scholarly books) on individual artists working in all media, from all historical periods, and from any country.
Together these represent a very comprehensive guide to the best resources for art research. Scanning the Tables of Contents will enable you to identify the sections you should examine, and the more detailed index in each volume will lead you to anything you might have overlooked.
These are great examples of scholarly bibliographies. If you have never used such a tool before, and your research topic fits in here, these will be a real experience for you. They can save you a lot of time.