Each state contains its own civil and criminal laws. Every state has these laws (referred to as either laws or statutes) and makes these laws available to the public online- absolutely free. Typically these laws are written in 6th, 7th, and 8th grade level language as required by state legislature in each state.
In the state of Texas:
The source law for the Uniform Commercial Code (UCC). In few sentences, explain what the UCC covers (what is its use).