  We derive an X-ray luminosity function for active galactic nuclei (AGN) that
accounts for the X-ray source counts in the 0.5-2.0 and 2-10 keV energy ranges,
the redshift distribution of AGNs in the ROSAT Deep Survey (RDS), as well as
the X-ray background (XRB) from 1-10 keV. We emphasize the role of X-ray
absorption, which has a large effect on the faint end of the 2-10 keV source
counts, as well as on the integrated X-ray background.
