Taxiing is the controlled movement of the airplane under its own power while on the ground. Since an airplane is moved under its own power between the parking area and the runway, the pilot must thoroughly understand and be proficient in taxi procedures.
AC 91-73B Flight School Procedures During Taxi Operations
AC 120-74B Flightcrew Procedures During Taxi Operations
AFH Ch-02 (14) Taxiing
PHAK Ch-14 (5) Airport Markings and Signs
Private Pilot ACS Page 15 Task D. Taxiing