  I report the discovery of twenty-two new variable stars in the Northern Sky:
eleven eclipsing, seven pulsating (one of which is suspected), three rotating,
and one of unspecified type. Three already known variables (PT Lyr, [WM2007]
1157, and [WM2007] 1160) have been studied more carefully in order to clarify
their characterization or provide updated ephemeris.
