A substantial share of U.S. employment in May 2011 was concentrated in a relatively small number of occupations. Just 10 occupations made up more than 20 percent of total employment, and the 20 largest occupations made up nearly one-third of employment—more than 41 million jobs. Most of these large occupations had below-average wages, as did most of the occupations with the highest job gains and losses between May 2007 and May 2011. Growth in the healthcare industry helped to shape employment gains in individual occupations, while construction and production occupations were concentrated in shrinking industries. Although the overall occupational structure of the U.S. economy generally reflected that of the private sector, education and protective service occupations were more prevalent in the public sector, particularly in local government. This issue of BEYOND THE NUMBERS uses data from the Occupational Employment Statistics (OES) program to provide an overview of U.S. occupational employment and wages in May 2011. The first section presents employment and wage data for wage and salary workers in the largest U.S. occupations and selected occupational groups. The subsequent sections highlight occupations with the highest job gains and losses between May 2007 and May 2011, occupations prevalent in growing and shrinking industries, and occupational employment comparisons between the public and private sector.