  We present the reddening (E(V-I)) and Extinction maps in V-band (A_V) and
I-band (A_I) for 48 Optical Gravitational Lensing Experiment II (OGLE-II)
Galactic bulge (GB) fields, covering a range of $-11^\circ <l< 11^\circ$, with
the total area close to 11 square degrees. These measurements are based on
two-band photometry of Red Clump Giant (RCG) stars in OGLE-II VI maps of GB. We
confirm the anomalous value of the ratio of total to selective extinction
$R_{VI} = A_V / E(V-I) = 1.9 \sim 2.1$, depending on the line of sight, as
measured by Udalski (2003). By using the average value of $R_{VI}=1.964$ with
the standard deviation sdev=0.085, we measured E(V-I), A_V and A_I, and we
obtained extinction and reddening maps with a high spatial resolution of $
26.7''\sim 106.8''$, depending on the stellar density of each field. We assumed
that average, reddening corrected colours of red clump giants are the same in
every field. The maps cover the range 0.42<E(V-I)<3.5, 0.83<A_V<6.9 and
0.41<A_I<3.4 mag respectively. The zero points of these maps are calibrated by
using V-K colours of 20 RR Lyrae ab variables (RRab) in Baade's window. The
apparent reddening corrected I-band magnitudes of the RCGs change by +0.4 mag
while the Galactic coordinate l varies from $+5^{\circ}$ to $-5^{\circ}$,
indicating that these stars are in the Galactic Bar. The reddening corrected
colour of RRab and RCGs in GB are consistent with colours of local stars, while
in the past these colours were claimed to be different.
