yes
An expository essay educates the reader. It takes something that is completely unknown or foreign and leaves the reader with knowledge of the subject.
Jefferson Davis Ray has written: 'The highest office' -- subject(s): Clergy, Office 'Meant for men' -- subject(s): Christian life, Men 'Trouble' -- subject(s): Joy and sorrow 'Expository preaching' -- subject(s): Preaching, Expository preaching
James Harvey has written: 'Essays on astrology, expository and apologetic' -- subject(s): Astrology
B. A narrative communicates a story, while expository writing communicates fact-based information.
Bud Mishra has written: 'Lecture notes in lattices, bases and the reduction problem (expository notes)' -- subject(s): Accessible book
Peter Lipton has written: 'Inference to the best explanation' -- subject(s): Explanation, Inference, Methodology, Philosophy, Science
H. Rolfus has written: 'Explanation of the Apostles' Creed' -- subject(s): Apostles' Creed, Catholic Church, Creeds 'Illustrated explanation of the holy sacraments' -- subject(s): Sacraments, Sacramentals
Desiree Budd has written: 'Allocation of working memory resources during the reading of expository text' -- subject(s): Short-term memory, Memory
Francis Jay Nock has written: 'Expository German' -- subject(s): Accessible book, Lending library, Science, German language, Readers
Dick Ruimschotel has written: 'Explanation, causation, and psychological theories' -- subject(s): Causation, Cognitive dissonance, Explanation, Philosophy, Problem solving, Psychology
No. Expository writing is generally directed at the public and is usually written in the third person. Occasionally, a piece of expository writing may be in the first person, for example, if the author wants to be 'chatty'.
Frederick Viggers Smith has written: 'Explanation of Human Behaviour' -- subject- s -: Psychology