This document provides an introduction to law and legal reasoning. It discusses how law is created by legislatures and interpreted by courts. There are two main schools of legal thought - the traditional approach which looks to past cases as precedent, and the sociological approach which considers social forces and allows law to change with society. The document also outlines different sources of law including common law, statutory law, administrative regulations, and constitutional law. It distinguishes between different types of jurisdictions, courts, and legal remedies.