Publishing System User Manual
+ - CHAPTER 1: THE PROPOSAL
+ - CHAPTER 2: THE BOOK
+ - CHAPTER 3: THE MARKET
+ - CHAPTER 4: MORE PROPOSAL DETAIL
+ - CHAPTER 5: CATEGORIES AND METADATA
+ - CHAPTER 6: THE CONTRACT
+ - CHAPTER 7: AUTHOR SERVICES
+ - CHAPTER 8: EDITORIAL
+ - CHAPTER 9: MARKETING
+ - CHAPTER 10: CONTACTS DATABASE
+ - CHAPTER 11: MARKETING ACTIVITIES
+ - CHAPTER 12: ONLINE SALES AND AMAZON
+ - CHAPTER 13: ONLINE MARKETING SERVICES
+ - CHAPTER 14: SOCIAL MEDIA
+ - CHAPTER 15: BLOGS
+ - CHAPTER 16: SALES & ORDERING
+ - CHAPTER 17: ROYALTIES AND FINANCE
+ - APPENDICES
The text of the contract
Sample foreign rights contract
Planning a book
House style
Anthologies
Copyright questions
Illustrations, diagrams, photos
A note on selling to shops
Interview tips
A talk on alternative and self-publishing
Using the Author Forum
Common publishing abbreviations
+ - CHAPTER (to follow)
+ - CHAPTER (to follow)

Common publishing abbreviations

[s] - Shelved
OP - Original Poster
OT - Off Topic

 

MMPB / PB - Mass-Market Paperback; sized: 4.25"x6.75"
TPB - Trade Paperback; larger than mmpb, but softbound; common sizes: 5.5"x8.5" & 6"x9"
GN - Graphic Novel; art & (almost always) text; often a compilation of individual comic book issues; called a trade paperback (usually softbound)
HC - Hardcover; most common size is Octavo (8vo): 5"x8" -> 6"x9"
eBk - an eBook / digital format (eg: .epub)

OoP / OOP / OP - Out of Print -- OP is generally used to refer to the Original Poster (or requester) who is looking for the book. (see above)
POD - Print on Demand
ARC - Advance Reading Copy

BC / BCE - Book Club Edition

ToC - Table of Contents

short - short story (often including novellas)

NA - New Adult (often: collage setting/ages)
YA - Young Adult (often: high school setting/ages)
MG - Middle Grade
Juv / Juve / Juvies - Juvenile

MC - Main Character (has also been: Motorcycle Club)
Protag - Protagonist
H & h - Hero and heroine; (very often capitalization denotes gender), sometimes used separately in desc. eg: H has baby with OW, h files for divorce.
pov - Point of View
POC - Person of color
ISO - In Search Of... [X]

NF - Non-fiction
SF / SciFi / scifi - Science Fiction
SF&F - Science Fiction and Fantasy
Fant / FN- Fantasy
Cont - Contemporary
UF - (contemporary) Urban Fantasy 
Rom / RO / (once RMC) - Romance
PnR / PNR - Paranormal Romance
H.Rom - Historical Romance
R.Rom - Regency Romance
H.Fic / Hist Fic / HF - Historical Fiction
Hor / HR - Horror
Susp - Suspense/Thriller
MS - Mystery and Suspence - also, Manuscript
RF - Realistic fiction
AA - Action and Adventure
Hum /HM - Humor
SP - Speculative Fiction
TH - Thriller
UR - Urban
MF - Misc. Fiction

TT - scifi: Time Travel
PUniv / PUni - scifi: Parallel Universe(s) / Crosstime
A.Hist - scifi: Alternate history
ESP - Extra-Sensory Perception; often used to inc. other psionic powers
were / shifter - limited shape-changing; like a werewolf - but usually inc. other animals/beasts; eg: were-dragon, were-tiger, were-bear
OCD - Obsessive-Compulsive Disorder

BDSM - Bondage (/Discipline) Domination (/Submission) Sadism/Masochism
SSC - BDSM: Safe/Sane/Consensual (most books have a statement)
GLBT / LBGT / (etc) - Gay, Lesbian, Bisexual and Transgender
M/M / MM / mm - Rom: Gay Male-to-Male
mmf - Rom: Male-Female-Male love triangle; implied homosexual interaction (mm), instead of just a menage-a-trois.
mfm - Rom: Male-Female-Male love triangle; hetero-only; implied sleeping together, instead of just a triangle (serial interactions only).
ff - Rom: Lesbian
OW - (typically Rom) Other Woman
moc - (typically Rom) Marriage of Convenience
HEA - happily ever after
HFN - happy for now
TSTL - (often Rom) too Stupid to live
OTT - Over the top

WIP - Work in Progress
TBR - To Be Read (pile, shelf, etc); books which a person is intending to read sometime 'soon'.