The Philippine legal system is a mixture of customary usage, Roman civil law and Anglo-American common law systems, and Islamic law. The civil law operates in areas such as family relations, property, succession, contract and criminal law while statutes and principles of common law origin are evident in such areas as constitutional law, procedure, corporations law, taxation, insurance, labour relations, banking and currency. About 87 major dialects are spoken all over the islands. English and Filipino are the official languages. English is the language of instruction in higher education.