The document provides an introduction to user testing. It discusses recruiting 3 participants per testing session and having them complete 3 tasks to test a website. The document outlines the basic structure of a testing session, including welcoming participants, asking background questions, familiarizing them with the site, having them complete tasks while thinking aloud, and probing them afterwards for additional feedback. The goal is to identify usability issues and areas for improvement through observing users interact with a site naturally and without assistance.