The median annual wage of librarians was $54,500 in May 2010. The median wage is the wage at which half of the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $33,590, and the top 10 percent earned more than $83,510.
Most librarians work full time, although opportunities exist for part-time work. In 2010, 26 percent of librarians worked part time. Public and academic librarians often work on weekends and evenings and may work on some holidays. School librarians usually have the same work and vacation schedules as teachers, including summers off. Librarians in special libraries, such as law or corporate libraries, typically work normal business hours but may need to work longer hours to help meet deadlines.
Source: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2012-13 Edition