Contributions.- A Framework for Point-Free Program Transformation.- Encoding Strategies in the Lambda Calculus with Interaction Nets.- Proof Tool Support for Explicit Strictness.- A Rational Deconstruction of Landin’s J Operator.- A Dependently Typed Framework for Static Analysis of Program Execution Costs.- Accurate Step Counting.- The Implementation of iData.- A High-Level Implementation of Composable Memory Transactions in Concurrent Haskell.- Polytypic Syntax Tree Operations.- Implementing a Numerical Solution of the KPI Equation Using Single Assignment C: Lessons and Experiences.- With-Loop Fusion for Data Locality and Parallelism.- A Document-Centered Environment for Haskell.- A Binding Scope Analysis for Generic Programs on Arrays.