The lockstep march from school to work and then on to retirement no longer applies for a growing share of Americans. Many young adults are launching their careers later, while older adults are working longer. As a result, the education and labor market institutions that were the foundation of a 20th century system are out of sync with the 21st century knowledge economy. This six-part report examines trends in employment, labor force participation, annual earnings, and occupations for young and older adults, by sex, race/ethnicity, and education. The following are appended: (1) Methodology; and (2) Detailed Occupational Changes for Young Adults between 1980 and 2010, and Endnotes.