The book Obsolete Banknotes Of North Carolina by J. Roy Pennell Jr. was written in 1985 and is a mere 48 pages only. The book focuses only on Banks and not on merchant's scrip, depression scrip, etc.
Although, banks are the main focus of the book, it is not comprehensive. For example, the Bank of Cape Fear does not have notes from the different branches listed, although it does list the cities the branches were located in. Moreover, Haxby lists $1 and $2 denominations for the Bank of Cape Fear and yet, Pennell only lists denominations from $3 and above.
Unlike other books, rarity values are not listed for the notes presented. To make matters worse, on page 5 it reads: "A table of valuations will be found at the back of the book". No such table is to be found at the back of the book. It does, however, have a list of other books by the publisher as well as other books on obsolete notes.