In the first printings of "Oracle Design", figure 3-16 on page 79 is a
duplicate of figure 3-4 on page 66.  The files ode0316.eps and
ode0316.gif have a corrected version of that figure in eps and gif
format, respectively.

If you can view both the eps and gif files, you'll find that the eps
file is a little sharper; the gif file is there if you don't have the
tools to view the eps file.