"Though the writing is crisp, and the explanations lucid, this is not an easy book to read. The difficulty lies in the density of ideas presented. The rewards of persevering are definitely worth it, though. In fact, once immersed, I started to ponder where this material would lead to: which algorithms could be even further generalized, what would many of these algorithms look like if implemented in Coq or Agda, and so forth. This is the effect that all good books have on me: well-presented and well-motivated material strives to become a stepping stone to further discovery. Any serious computer scientist would benefit from reading and properly understanding this book.
Jacques Carette, Computing Reviews
Richard Bird takes a radical approach to algorithm design, namely, design by calculation. This unique collection of 30 programming problems draws from various sources including games and puzzles, sorting, and problems in data compression.