This document defines and categorizes different types of unemployment. It discusses voluntary unemployment which occurs when workers choose to leave jobs to find new opportunities. Involuntary unemployment is defined as unemployment caused by external factors like lack of demand. Specific types of unemployment discussed include seasonal, cyclical, technical, frictional, structural, and disguised unemployment. Seasonal unemployment occurs in industries like agriculture that experience fluctuations based on the time of year. Cyclical unemployment is caused by lack of aggregate demand in the economy. Technical unemployment results from technological changes replacing certain jobs. Frictional unemployment is temporary as workers transition between jobs. Structural unemployment is a mismatch between the skills workers have and the jobs available. Disguised unemployment occurs when more workers are