Our focus is on the inner workings of CIFS filesharing, particularly the client side. Through necessity (and a macabre sense of fascination) we will also cover NetBIOS LAN emulation over TCP/IP, basic SMB authentication, and browsing. We will delicately dance around the NT Domain system and CIFS for W2K. These are much bigger and hairier, and deserve their own books. 
The book is separated into three main parts :
I. NBT: NetBIOS over TCP/IP
II. SMB: The Server Message Block Protocol
III. Browsing: Advertising Services
Following these three parts are appendices, a glossary, bibliography for further reading, and an indexall the good stuff you would expect in such a book.