Q. Do you have a key to the two/three letter prefix in shelf numbers?
B is for circulating non-fiction biography; for example, Claire Tomalin'sbiography of Charles Dickens would be B DIC TOM. Charles Dickens is the subject of the biography and Claire Tomalin is the author.
CDB would be a biography on CD; for example, Bill Clinton's biography on CD would be CDB CLI CLI. In this case, he is the subject as well as the author of the biography.
All non-fiction reference books have an R at the beginning of the call number e.g. R 813.5 DIC
Juvenile prefixes are J or YA. Juvenile reference books are JR
Fiction prefixes are F (general fiction), SF (science fiction), M (mystery), W (western). e.g. F DIC for Charles Dickens' 'David Copperfield' or SF BRA for Ray Bradbury's 'The Illustrated Man.'
ZF refers to rare books in Archives e.g. T.S. Stribling's 'Unfinished Cathedral' - ZF STR.
H refers to books in the Heritage Room e.g. Gardner Ashaf Churchill's 'The Churchill Family in America' - H 929.2 CHU V. 1 and H 929.2 CHU V. 2.