  In this paper, we continue to investigate finite-dimensional Nichols algebras
over simple Yetter-Drinfeld modules of the Suzuki algebras $A_{N\,
n}^{\mu\lambda}$. It is finished for the case $A_{N\, 2n}^{\mu\lambda}$. As for
the case $A_{N\, 2n+1}^{\mu\lambda}$, it boils down to the long-standing open
problem: calculate dimensions of Nichols algebras of dihedral rack type $\Bbb
D_{2n+1}$. It is interesting to see that the Suzuki algebras are of
set-theoretical type. We pose some question or problems for our future
research. In particular, we are curious about how to generalize the
correspondence between braidings of rack type and group algebras to braidings
and Hopf algebras of set-theoretical type.
