The ''Anomalous X-ray Pulsars'' (AXP) are a small group of X-ray pulsa
rs characterized by periods in the similar to 5-10 s range and by the
absence of massive companion stars. There are now 7 possible members o
f this class of objects. We review recent observational results on the
ir X-ray spectra, spin period evolution, and searches for orbital moti
on and discuss the implications for possible models.