The labels tab in ArcMap will let you build "expressions" to set up more advanced labels, which can include things like labels from multiple fields in the attribute table.
"Number of floors: " & NUM_FLOORS & chr(13) & "Land Use: " & LU
*Put any text inside quotes
*Use & to separate label fields from each other and from values in quotes (concatenate)
*chr(13) is the VBScript for a line break/carriage return
Example map using the expression from above with the "Boston, MA Land Parcels, 2007" file, available on the MIT Geodata Repository