This book constitutes the refereed proceedings of the 25th International Symposium on Trends in Functional Programming, TFP 2024, held in South Orange, NJ, USA, during January 10–12, 2024.The 10 full papers included in this book were carefully reviewed and selected from 14 submissions. Topical sections as follows: dependent type systems; compiler optimizations; and DSL design and implementation.

A new edition of a book, written in a humorous question-and-answer style, that shows how to implement and use an elegant little programming language for logic programming.The goal of this book is to show the beauty and elegance of relational programming, which captures the essence of logic programming. The book shows how to implement a relational programming language in Scheme, or in any other functional language, and demonstrates the remarkable flexibility of the ...