This book presents and discusses new developments in the study of evolution equations. Topics discussed include a qualitative study of a perturbed critical semi-linear wave equation in variable metric, renormalised solution for a non-linear anisotropic degenerate parabolic equation, periodic solutions of impulsive evolution equations, non-linear spectral theory and controllability of semi-linear evolution equations, uniform exponential stability of linear skew-evolution semiflows and integral solutions for non-densely defined evolution equations.