The labor market experience of individuals between their 18th and 30th birthdays were analyzed. Data from the Youth cohort of the National Longitudinal Surveys showed that, between the ages of 18 and 30, a typical individual had held 7.5 jobs and had 8.6 years of work experience. This suggested that workers between these ages experienced 3.4 years of joblessness. On their 30th birthday, over 40 percent of workers had held their current job for 2 years or less, and about a quarter had been at their job more than 6 years. However, only 15 percent of individuals had spent 2 years or less in the longest job held between age 18 and 30, and about 30 percent had spent more than 6 years in the longest job. The average time spent at the longest job held between age 18 and age 30 was 5 years. Blacks and female high school dropouts tended to have the least work experience and the least job tenure by age 30. (YLB)