U.S. Supreme Court Justice Sonia Sotomayor has logged 53 public appearances in the past two terms—more than any other justice, according to a website that tracks justices’ speaking engagements.

Near the other end of the spectrum is Chief Justice John Roberts Jr., who has made 11 public appearances in the same time period. Roberts is visiting the New England School of Law on Wednesday, a rare occasion in which he is interacting with law students as well as making a Law Day keynote address.