A layperson is any person who is not ordained member of the clergy, or who is not under religious vows such as those of a monk or a nun. By extension, the term also means one who is not a professional or expert. This in contrast with professionals such as technicians, scientists, engineers, mathematicians, or members of any other profession or craft where large amounts of education or practice are necessary to perform a task well. The concepts of experts and expertise is debated within the field of epistemology under the general heading of expert knowledge.

See also

• Amateur