We describe the design, implementation and use of HPC, a toolkit to record and display Haskell Program Coverage. HPC includes tools that instrument Haskell programs to record program coverage, run instrumented programs, and display information derived from coverage data in various ways. Categories and Subject Descriptors D.2.5 [SOFTWARE ENGINEERING]: Testing and Debugging--Testing tools (e.g., data generators, coverage testing) General Terms Measurement Keywords Haskell, Software Engineering, Code Coverage