Geared toward new users, FLAC Basics is an introduction to the application of Itasca's FLAC software in geotechnical engineering. FLAC 8 Basics is based on the original FLAC Basics text first written in 1993 and extends the documentation to demonstrate the power and ease-of-use of FLAC's graphical user interface and new features in FLAC version 8.0 to facilitate the solution of complex geotechnical problems.