Commercial transactions is a general term used to describe a whole body of substantive law applicable to the rights, intercourse, and relations of persons engaged in commerce, trade or mercantile pursuits. The Uniform Commercial Code is a group of laws adopted in whole or substantially by all states, and governs commercial transactions, including sales and leasing of goods, transfer of funds, commercial paper, bank deposits and collections, letters of credit, bulk transfers, warehouse receipts, bills of lading, investment securities, and secured transactions. Commercial transactions encompasses many areas of law including banking and finance, securities, real estate, bankruptcy, and more. Some lawyers have specialties in one or more of these areas, and others will handle a wide variety of commercial transactions. These lawyers are employed by private law firms of all sizes, the corporate sector and the government sector.