The Personal Globe Inventory (PGI) evolved from the exploratory work on the spherical structure of interests (Tracey, 1997a; Tracey & Rounds, 1996a,b) and measures activity preferences, activity competence beliefs, and occupational preferences. The PGI is a viable instrument that mirrors information provided by many instruments but also includes greater complexity and flexibility. This monograph describes the inventory, examines its reliability and construct validity, discusses options for profiling inventory results, interprets five illustrative profiles, and suggests directions for future research.