The Spectra of Words -- On the Undecidability of Coherent Logic -- Löb’s Logic Meets the ?-Calculus -- A Characterisation of Weak Bisimulation Congruence -- Böhm’s Theorem, Church’s Delta, Numeral Systems, and Ershov Morphisms -- Explaining Constraint Programming -- Sharing in the Weak Lambda-Calculus -- Term Rewriting Meets Aspect-Oriented Programming -- Observing Reductions in Nominal Calculi Via a Graphical Encoding of Processes -- Primitive Rewriting -- Infinitary Rewriting: From Syntax to Semantics -- Reducing Right-Hand Sides for Termination -- Reduction Strategies for Left-Linear Term Rewriting Systems -- Higher-Order Rewriting: Framework, Confluence and Termination -- Timing the Untimed: Terminating Successfully While Being Conservative -- Confluence of Graph Transformation Revisited -- Compositional Reasoning for Probabilistic Finite-State Behaviors -- Finite Equational Bases in Process Algebra: Results and Open Questions -- Skew and ?-Skew Confluence and Abstract Böhm Semantics -- A Mobility Calculus with Local and Dependent Types -- Model Theory for Process Algebra -- Expression Reduction Systems and Extensions: An Overview -- Axiomatic Rewriting Theory I: A Diagrammatic Standardization Theorem.