informative
instructive
exegetical
explanatory
illustrative
agonistic
allegoric
analysable
anecdotal
autobiographical
biographic
deductive
didactic
discursive
edify
epical
extemporaneous
extemporary
far-stretched
filmic
first-person
livelong
moralistic
noncommercial
pedagogic
polemical
prosy
remonstrative
talky