What are the three main purposes for which authors write?

adavid

nashidadamnaseer

carrie_duckworth

LauraStephen25

jswierczewski

jonathan_alciati

dking

willis_t

baez0703

maubrey

maddieb94

jessica.ysasi-tagle

cbowes

asanchez

timmons_l

bmartinez

jnaples

rzrivera

estudnicky