Spanish Supreme Court is the highest court for all cases in Spain (both private and public). Only those cases related to human rights can be appealed at the Constitutional Court (which also decides about acts accordance with Spanish Constitution).
In Spain, high courts cannot create binding precedents; however, lower rank courts usually observe Supreme Court interpretations. In most private law cases, two Supreme Court judgements supporting a claim are needed to appeal at the Supreme Court.
Five sections form the Spanish Supreme court:

The Spanish Supreme Court hears all cases related to law in what areas?