Attitude instrument flying is defined as the control of an aircraft's spatial position by using instruments rather than outside visual references.
Attitude Instrument Flying
IFH 06-15 Airplane Attitude Instrument Flying - Using an Electronic Flight Display
Basic Instrument Flight Maneuvers
IFH 07-33 Airplane Basic Flight Maneuvers - Using an Electronic Flight Display
Instrument Patterns A, B, & C
Instrument ACS Page 17 Task A. Instrument Flight