Invited Talks.- Abstract Scalars, Loops, and Free Traced and Strongly Compact Closed Categories.- Labels from Reductions: Towards a General Theory.- Adequacy for Algebraic Effects with State.- Contributed Papers.- Bisimilarity Is Not Finitely Based over BPA with Interrupt.- Algebra ? Coalgebra = Presheaves.- Strong Splitting Bisimulation Equivalence.- Complete Axioms for Stateless Connectors.- On the Semantics of Coinductive Types in Martin-Löf Type Theory.- Look: Simple Stochastic Relations Are Just, Well, Simple.- Modelling Fusion Calculus using HD-Automata.- An Algebraic Framework for Verifying the Correctness of Hardware with Input and Output: A Formalization in HOL.- Using Proofs by Coinduction to Find "Traditional" Proofs.- From T-Coalgebras to Filter Structures and Transition Systems.- Context-Free Languages via Coalgebraic Trace Semantics.- Towards a Coalgebraic Semantics of the Ambient Calculus.- The Least Fibred Lifting and the Expressivity of Coalgebraic Modal Logic.- Ultrafilter Extensions for Coalgebras.- Equational Logic of Recursive Program Schemes.- The Category Theoretic Solution of Recursive Program Schemes.- A Categorical Approach to Simulations.- Behavioral Extensions of Institutions.- Discrete Lawvere Theories.- Final Semantics for Event-Pattern Reactive Programs.- Complete Symbolic Reachability Analysis Using Back-and-Forth Narrowing.- Final Sequences and Final Coalgebras for Measurable Spaces.- Bireachability and Final Multialgebras.- Parametrized Exceptions.- Property Preserving Redesign of Specifications.