  Some mysterious features of the strong interactions become easily understood
if our usual QCD with N=3 is `close to' SU(oo) and if the latter theory is
confining. N=oo theories are theoretically simpler; in particular there has
been much progress in constructing weak-coupling duals in string theory. In
this poster I will describe some of the things that recent lattice calculations
tell us about the large-N limit of SU(N) gauge theories in 3+1 dimensions. The
focus is on confinement, how close SU(oo) is to SU(3), new stable strings at
larger N, the Pomeron, deconfinement, topology, 't Hooft string tensions. I
also allude to other topics, such as the high-T pressure deficit, chiral
physics and the phases of the theory.
