Book excerpt: Papers on Global Stability of Non-Solvable Ordinary Differential Equations with Applications, Quarter-Symmetric Metric Connection on Pseudosymmetric Lorentzian α-Sasakian Manifolds, Equivalence of Kropina and Projective Change of Finsler Metric, Geometric Mean Labeling of Graphs Obtained from Some Graph Operations, and other topics. Contributors: Linfan Mao, V.K. Chaubey, T.N. Pandey, C. Adiga, S.N. Fathima, Haidar Ariamanesh, H.S. Shukla, O.P. Pandey, B.N. Prasad, Tayo Charles Adefokun, Deborah Olayide Ajayi, and others.