Bill Roscoe, on his 60th Birthday.- A Tribute to Bill Roscoe, on the Occasion of his 60th Birthday.- Herding Cats, Oxford Style.- Stealthy Protocols: Metrics and Open Problems.- A Specification Theory of Real-Time Processes.- Towards Verification of Cyber-Physical Systems with UTP and Isabelle/HOL.- FDR: From Theory to Industrial Application.- Information Flow, Distributed Systems, and Refinement, by Example.- Abstractions for Transition Systems with Applications to Stubborn Sets.- A Hybrid Relational Modelling Language.- What Makes Petri Nets Harder to Verify: Stack or Data.- Analysing Lock-Free Linearizable Datatypes Using CSP.- Discrete Random Variables over Domains, Revisited.- A Demonic Lattice of Information.- A Brief History of Security Protocols.- More Stubborn Set Methods for Process Algebras.- A Branching Time Model of CSP.- Virtualization Based Development.