This is the first book entirely dedicated to the problem of memory management in programming language implementation. Its originality stems from the diversity of languages and approaches presented: functional programming, logic programming, object oriented programming, and parallel and sequential programming. The book contains 29 selected and refereed papers including 3 survey papers, 4 on distributed systems, 4 on parallelism, 4 on functional languages, 3 on logic programming languages, 3 on object oriented languages, 3 on incremental garbage collection, 2 on improving locality, 2 on massively parallel architectures, and an invited paper on the thermodynamics of garbage collection. The book provides a snapshot of the latest research in the domain of memory management for high-level programming language implementations.