  We introduce the semiclassical Wehrl entropy for the nucleon as a measure of
complexity of the multiparton configuration in phase space. This gives a new
perspective on the nucleon tomography. We evaluate the entropy in the small-$x$
region and compare with the quantum von Neumann entropy. We also discuss the
growth of entropy at small-$x$ and argue that it eventually saturates due to
the Pomeron loop effect.
