This book is aimed at presenting different methods and perspectives in
the theory of Quantum Groups, bridging between the algebraic
representation, theoretic, analytic, and differential-geometric
approaches. It also covers recent developments in Noncommutative
Geometry, which have close relations to quantization and quantum group
symmetries. The volume collects surveys by experts which originate from
an acitvity at the Max-Planck-Institute for Mathematics in Bonn.