This volume is dedicated to Professor Okyay Kaynak to commemorate his life time impactful research and scholarly achievements and outstanding services to profession. The 21 invited chapters have been written by leading researchers who, in the past, have had association with Professor Kaynak as either his students and associates or colleagues and collaborators. The focal theme of the volume is the Sliding Modes covering a broad scope of topics from theoretical investigations to their significant applications from Control to Intelligent Mechatronics.

My Friend Professor Okyay Kaynak.- Continuous Nested Algorithms: The Fifth Generation of Sliding Mode Controllers.- Decentralised Sliding Mode Control for Nonlinear Interconnected Systems with Application to a Continuously Stirred Tank Reactor.- Integral Sliding Mode Control of Multi-Input Nonlinear Uncertain Non-Affine Systems.- Dynamical Behaviors of Discrete-Time Fast Terminal Sliding Mode Control Systems.- A New Class of Non-linear Reaching Laws for Sliding Mode Control of Discrete Time Systems.- Sliding Mode Order and Accuracy in Sliding Mode Adaptation and Convergence Acceleration.- Event-Triggered Sliding Mode Control for Robust Stabilisation of Linear Multivariable Systems.- A Nonhomogeneous Super-Twisting Algorithm.- Global Multivariable Hybrid Estimator for Non uniform Relative Degree Systems with Uncertainties and Disturbances.- Sliding Mode Control of Switched Stochastic Hybrid Systems.- Sliding Mode Control for Unmanned Aerial Vehicles Research.- Selected Problems of Discontinues Control of Inverter Fed Induction Motor Drives.- Tensor Product Model Transformation Based Sliding Mode Design for LPV systems.- Sliding Mode Control for a Robotic Fish.- Variable Structure Control of a Perturbed Crane: Parametric Resonance Case Study.- Controlling the Pitch and Yaw Angles of a 2-DOF Helicopter Using Interval Type-2 Fuzzy Neural Networks.- Fuzzy Control of Direct Drive Manipulators.- Model Reduction for Sliding Mode Control of Rapid Thermal Processing System.- A Classification and Overview of Sliding Mode Controller Sliding Surface Design Methods.- Multiple Surface Sliding Mode Control for an Autonomous Quadrotor Helicopter.