Foreword -- On Degenerate Cycles in Planar Filippov Systems -- Sliding Dynamics on Codimension-2 Discontinuity Surfaces -- Asynchronous Networks -- Regularization by External Variables -- Characterizing Tipping in a Stochastic Reduced Stommel-Type Model in Higher-Dimensions -- Global Bifurcations in a Class of Discontinuous Piecewise Linear Systems -- Single-Impact Orbits near Grazing Periodic Orbits for an Impact Oscillator -- A Choice between Smooth and Nonsmooth Models -- Sliding Mode Control of Heterogeneous Systems -- Limit Cycle Bifurcation from a Persistent Center at Innity in 3D Piecewise Linear Systems with Two Zones -- Alternating Smooth and Nonsmooth Bifurcations in a Discontinuous Linear-Power Map -- Extending Slow Manifolds Near a Degenerate Transcritical Intersection in Three Dimensions -- Less is More I: a Pessimistic View of Piecewise Smooth Bifurcation Theory -- Less is More II: An Optimistic view of Piecewise Smooth Bifurcation Theory -- On Semi-Local Structural Stability of Filippov Systems -- Nonlinear Estimation of Synaptic Conductances Via Piecewise Linear Systems -- Integral Curves of a Vector Field with a Fractal Discontinuity -- Why Nonsmooth? -- An Update on That Singularity -- Sensor Effects in Sliding Mode Control of Power Conversion Cells -- Variational Time Stepping for Nonsmooth Analytical System Dynamics -- The chaotic behavior of piecewise smooth dynamical systems on torus and sphere -- Non-Smooth Hopf-Type and Grazing Bifurcations Arising from Impact/Friction Contact Events -- Number of Limit Cycles for some Non-Generic Classes of Piecewise Linear Differential Systems -- An Equivalent Formulation of the Averaged Functions Via Bell Polynomials -- Smoothing a Piecewise-Smooth: An Example from Plankton Population Dynamics -- A Note on Frictional Slip Patterns -- Climate in Barcelona is Wonderful -- Open Problems on Border-Collision Bifurcations -- Nonsmooth Maps and the Fast-Slow Dynamics of Sleep-Wake Regulation: Part I -- Nonsmooth Maps and the Fast-Slow Dynamics of Sleep-Wake Regulation: Part II -- Comments for the Continuation Method by A.F. Filippov for Discontinuous Systems, Part I -- Comments for the Continuation Method by A.F. Filippov for Discontinuous Systems, Part II -- Challenges from System Dynamics to Complexity and Piecewise-Deterministic Markov Processes: Market Modeling.