1. Inventories are used to evaluate personal characteristics or skills by making lists of traits, preferences, attitudes, interests and abilities. 2. Interest inventories specifically are self-report instruments used to describe and measure individuals' interests, which are significant to their personality, education and careers. They involve noting likes and dislikes. 3. Interest inventories are commonly used for educational and vocational guidance by analyzing patterns of interest associated with success in different fields like science, art, social services and more. They involve sorting interests into areas to identify the strongest matches.