  We report a series of extensive photometric and spectroscopic observations of
the luminous M31 nova M31N 2007-11d. Our photometric observations coupled with
previous measurements show that the nova took at least four days to reach peak
brightness at R~14.9 on 20 Nov 2007 UT. After reaching maximum, the time for
the nova to decline 2 and 3 magnitudes from maximum light (t_2 and t_3) was
~9.5 and ~13 days, respectively, establishing that M31N 2007-11d was a
moderately fast declining nova. During the nova's evolution a total of three
spectra were obtained. The first spectrum was obtained one day after maximum
light (5 days post-discovery), followed by two additional spectra taken on the
decline at two and three weeks post-maximum. The initial spectrum reveals
narrow Balmer and Fe II emission with P Cygni profiles superimposed on a blue
continuum. These data along with the spectra obtained on the subsequent decline
clearly establish that M31N 2007-11d belongs to the Fe II spectroscopic class.
The properties of M31N 2007-11d are discussed within the context of other
luminous novae in M31, the Galaxy, and the LMC. Overall, M31N 2007-11d appears
to be remarkably similar to Nova LMC 1991, which was another bright,
slowly-rising, Fe II nova. A comparison of the available data for luminous
extragalactic novae suggest that the >~4 day rise to maximum light seen in M31N
2007-11d may not be unusual, and that the rise times of luminous Galactic
novae, usually assumed to be <~2 days, may have been underestimated.
