Commercial law or business law is the body of law which governs business and commerce and is often considered to be a branch of civil law and deals both with issues of private law and public law. Commercial law regulates corporate contracts, hiring practices, and the manufacture and sales of consumer goods.

Corporations law or corporate law is the law concerning the creation and regulation of corporations. A corporation is a group of people which are legally treated as a person; the corporation can own property, sign contracts, sue, and be sued. Corporate law refers to the law governing the relationships among shareholders and management.

A form of legal entitlement which allows its holder to control the use of certain intangible ideas and expressions. The term intellectual property reflects the idea that once established, such entitlements are generally treated by courts, especially in common law jurisdictions, as if they were tangible property. The most common forms of intellectual property include patents, copyrights, trademarks, and trade secrets.

Deals with the relationships between states, or between persons or entities in different states. It sub-divides into "public international law", and "private international law". When used without an adjective, "international law" generally refers to "public international law", and this article concentrates on that meaning.

Internet law is the name given to practices of law addressing privacy in cyberspace, on-line sales-tax revenues collection, electronic commerce, ...