Fixed Points of Functors - A Survey -- Compositional Coinduction with Sized Types -- Lawvere Theories as Composed PROPs -- Transitivity and Difunctionality of Bisimulations -- Affine Monads and Side-Effect-Freeness -- Duality of Equations and Coequations via Contravariant Adjunctions -- Category Theoretic Semantics for Theorem Proving in Logic Programming: Embracing the Laxness -- Product Rules and Distributive Laws -- On the Logic of Generalised Metric Spaces -- A Complete Logic for Behavioural Equivalence in Coalgebras of Finitary Set Functors -- Coalgebraic Completeness-via-Canonicity: Principles and Applications -- Relational Lattices via Duality -- On Local Characterization of Global Timed Bisimulation for Abstract.