Books by Kurt Wall
Tcl and Tk Programming for the Absolute Beginner
Red Hat Linux networking and system administration
The definitive guide to GCC
Red Hat Linux 7.2 weekend crash course
The GCC Book with CDROM
The GCC Book with CDROM
Linux programming unleashed
Programacion En Linux - Con Ej
Programacion En Linux - Con Ejemplos
Programacion En Linux Al Descubierto - 2 Edicion
Linux Programming by Example (By Example)