Presents some of the research results in the implementation of functional programming languages and the practice of functional programming. This volume contains the peer-reviewed selection of the best articles presented at TFP 2007, the Eighth Symposium on Trends in Functional Programming, which was held in New York City on April 2-4, 2007.

The new results described in this volume are applicable to a wide array of programming languages and readers will benefit from exposure to the latest trends in solving modern Computer Science problems.The success of TFP symposia represents the growing importance of functional programming and the growing importance of the TFP policy to encourage new and veteran speakers to present their novel work at a friendly forum without first having to go through a strenuous review process. This policy has lead to a series of symposia with a rich diversity of talks from which a selection of publication-ripe articles are chosen for inclusion in a post-symposium peer-reviewed volume as the present one.