TWTM - The Well-Trained Mind
WTM-P or WTMP- Well-Trained Mind Press
WTM-A or WTMA - Well-Trained Mind Academy
WTM-LS - Well-Trained Mind Learning Services
SWB - Susan Wise Bauer
SOTW - The Story of the World
SOTW1 or SOTW-1 - the numeral indicates volume number
STOW - Nothing... but people sometimes use this instead of SOTW
HOTW - The History of the _____ World - the series
HAW - The History of the Ancient World
HMW - The History of the Medieval World
HRW - The History of the Renaissance World
OPG - The Ordinary Parent's Guide to Teaching Reading
WWE - Writing With Ease
WWS - Writing With Skill
TCW - The Creative Writer
FLL - First Language Lessons
GFTWTM or GftWTM - Grammar for the Well-Trained Mind
TGG - The Grammar Guidebook
TDD - The Diagramming Dictionary
WSW? - Who Said What?
TGS - Telling God’s Story
MFTS - Math Facts that Stick
MWC - Math with Confidence series
KMWC - Kindergarten Math With Confidence
FGMWC or FMWC - First Grade Math With Confidence
SGMWC or SMWC - Second Grade Math With Confidence
AB - Activity book (or, in context, sometimes Audiobook)
SP - Student pages
WB - Workbook
IG, IT - Instructor Guide, Intstructor Text
HC - Help Center, with FAQs
USPS - United States Postal Service
UPS - United Parcel Service