  In the last years, optical studies of Isolated Neutron Stars (INSs) have
expanded from the more classical rotation-powered ones to other categories,
like the Anomalous X-ray Pulsars (AXPs) and the Soft Gamma-ray Repeaters
(SGRs), which make up the class of the magnetars, the radio-quiet INSs with
X-ray thermal emission and, more recently, the enigmatic Compact Central
Objects (CCOs) in supernova remnants. Apart from 10 rotation-powered pulsars,
so far optical/IR counterparts have been found for 5 magnetars and for 4 INSs.
In this work we present some of the latest observational results obtained from
optical/IR observations of different types of INSs.
