1 Faces of Complexity.- 2 Nonlinear Systems: Analysis and Design Tools.- 3 Speed-Gradient Method and Partial Stabilization.- 4 Nonlinear Control of Multivariable Systems.- 5 Nonlinear Control of MIMO Systems.- 6 Adaptive and Robust Control Design.- 7 Decomposition of Adaptive Systems.- 8 Control of Mechanical Systems.- 9 Physics and Control.- A Appendix.- References.