TOCinRings has letters in circles. The letters are from a typewriter font called TiredOfCourier.
Wetetque regular and bold are all-caps faces made with simple lines. The lower case in each is different from the upper case, so the family has four sets of letters.
SdrawkcabTOC allows one to create mirror writing, that is, writing which looks correct when viewed in a mirror.
To understand why it is named as it is, print out the name “Sdrawkcab” using the typeface and hold it up to a mirror.
It is derived from the font TiredOfCourier.