A thorough understanding of classifications and sources of law is critical in order to properly organize a legal research plan on a matter you are assisting in handling. Depending on how a legal professional classifies a legal matter will make the difference between starting research on federal statutes instead of state statutes. Or, alternatively, it will make the difference between researching constitutional law, case law, or administrative law. While in many cases the classification and sources of law might seem clear, in many cases the analysis is not so easy. Improve your time efficiency with this key lecture.