Law firms and individual attorneys are rated through a national rating service. The rating is determined based on opinions expressed by the professional peers in the general community. Different ratings are provided based on legal ability, experience, and ethical conduct. These ratings are published in an attorney research directory such as the Martindale-Hubble, and include information such as the years of the firm's existence, the educational background of the attorneys, the areas of law practiced by both the firm and individual attorneys and the ratings that have been given the attorneys. For more information on how law firms are rated, consult an attorney or a library.