  a clerk is a white-collar worker who conducts general office tasks, or a worker who performs similar sales-related tasks in a retail environment (a retail clerk). the responsibilities of clerical workers commonly include record keeping, filing, staffing service counters, screening solicitors, and other administrative tasks. ==history and etymology== the word clerk is derived from the latin clericus meaning "cleric" or "clergyman", which is the latinisation of the greek ÎºÎ»Î·ÏÎ¹ÎºÏÏ (klÄrikos), "of the clergy". the word entered english from scots gaelic clÃ¨ireach, which was also derived from the latin clericus.clerk, online etymology dictionaryklerikos, henry george liddell, robert scott, "a greek-english lexicon", at perseus the association derived from early medieval courts, where writing was mainly entrusted to clergy because most laymen couldn't read. in a medieval context, the word clerk meant "scholar". even today, the term clerk regular designates a type of regular cleric. the cognate terms in some languages, e.g., klerk in dutch, became restricted to a specific, fairly low rank in the administrative hierarchy. ==united states== clerical workers are perhaps the largest occupational group in the united states. in 2004, there were 3.1 million general office clerks, 1.5 million office administrative supervisors and 4.1 million secretaries. clerical occupations often do not require a college degree, though some college education or 1 to 2 years in vocational programs are common qualifications. familiarity with office equipment and certain software programs is also often required. employers may provide clerical training. the median salary for clerks is $23,000, while the national median income for workers age 25 or older is $33,000.{{cite web|url=http://pubdb3.census.gov/macro/032006/perinc/new03_001.htm|title=u.s. census bureau, personal income distribution, age 
Clerks Office_and_administrative_support_occupations Office_work Sales_occupations