Essence of Fractional Order Calculus, Physical Interpretation and Applications -- Solution, Stability and Realization of Fractional Order Differential Equation -- Sliding Mode Control of Fractional Order Systems -- Finite Time Stabilization of Fractional Order Systems -- A Soft Variable Structure Control of Fractional Order Systems -- Robust Cooperative Control of Fractional-Order Multiple Agents -- Discrete Sliding Mode Control of Fractional Order systems -- Disturbance Observer based Robust Control for Fractional Order Systems -- Contraction Analysis by Integer Order and Fractional Order Infinitesimal Variations.