This document introduces the user of the Sierra Leone Industrial Fishery Database System (IFDaS) to the features of the database in respect to entering, retrieving, and analyzing of data. It does not require any pre-knowledge in the general use of database software. Rather, it leads the reader step-by-step through the various options contained in the program's Menus. Background information is also given of the structure and organization of the database as well as instructions of how to install IFDaS on a computer This serves as a guide for the system manager and the experienced programmer whenever modifications to existing forms or programs are to be made, or new components are to be incorporated into the database system.