Employment essays detailing experience in a certain occupational field are required when applying for some jobs, especially government jobs in the United States. Essays known as Knowledge Skills and Executive Core Qualifications are required when applying to certain US federal government positions.

A KSA, or "Knowledge, Skills, and Abilities," is a series of narrative statements that are required when applying to Federal government job openings in the United States. KSAs are used along with resumes to determine who the best applicants are when several candidates qualify for a job. The knowledge, skills and abilities necessary for the successful performance of a position are contained on each job vacancy announcement. KSAs are brief and focused essays about one's career and educational background that presumably qualify one to perform the duties of the position being applied for.

An Executive Core Qualification, or ECQ, is a narrative statement that is required when applying to Senior Executive Service positions within the US Federal government. Like the KSAs, ECQs are used along with resumes to determine who the best applicants are when several candidates qualify for a job. The Office of Personnel Management has established five executive core qualifications that all applicants seeking to enter the Senior Executive Service must demonstrate.
In the visual arts, an essay is a preliminary drawing or sketch upon which a final painting or sculpture is based, made as a test of the work's composition (this meaning of the term, like several of those following, comes from the word essay's meaning of "attempt" or "trial").