There are many classification systems for publication types. The following is the one in use at OEP as at July 2006.

CODE	MEANING
ANON	Published Anonomously
ANTH	Anthology
CH	Works for Children
CL	Collaboration with other author(s)
D	Drama, Play or Theatrical Work
DIC	Dictionary
ED	Editor
F	Fiction
IL	Illustrated
MISC	Miscellaneous
MS	Music
N	Novella
NP	Newspaper
NF	Non-fiction
PER	Periodical or Serial
PN	Pseudonym Used
RP	Republished
SS	Short Stories
SF	Science Fiction and Fantasy
V	Poetry
aka	'also known as'