Alan Turing's fundamental contributions to computing led to the development of modern computing technology, and his work continues to inspire researchers in computing science and beyond. This book is the definitive collection of commemorative essays, and the distinguished contributors have expertise in such diverse fields as artificial intelligence, natural computing, mathematics, physics, cryptology, cognitive studies, philosophy and anthropology.

The volume spans the entire rich spectrum of Turing's life, research work and legacy. New light is shed on the future of computing science by visionary Ray Kurzweil. Notable contributions come from the philosopher Daniel Dennett, the Turing biographer Andrew Hodges, and the distinguished logician Martin Davis, who provides a first critical essay on an emerging and controversial field termed hypercomputation. A special feature of the book is the play by Valeria Patera which tackles the scandal surrounding the last apple, and presents as an enigma the life, death and destiny of the man who did so much to decipher the Enigma code during the Second World War.

Other chapters are modern reappraisals of Turing's work on computability, and deal with the major philosophical questions raised by the Turing Test, while the book also contains essays addressing his less well-known ideas on Fibonacci phyllotaxis and connectionism.

Christof Teuscher holds an electronic engineer degree and received the diploma degree in computer engineering (equivalent to a MSCS degree) from the Swiss Federal Institute of Technology at Lausanne (EPFL) in 2000. Since then, he has been a research and teaching assistant in the Logic Systems Laboratory at EPFL, pursuing the Ph.D. degree in the field of biologically-inspired computing machines.

Christof Teuscher's work has been honored with several awards. His first book has been published by Springer-Verlag in 2001: Turing's Connectionism: An Investigation of Neural Network Architectures. He was head of the BioWall project that was widely covered by the media. Christof's second book - Alan Turing: Life and Legacy of a Great Thinker - will be published in 2003. Christof has also been nominated for a fellowship at the Center for Advanced Study in the Behavioral Sciences at Stanford University.

Christof Teuscher is the initiator and organizer of the Turing Day and an organizer and program chair of the 5th International Workshop on Information Processing in Cells in Tissues, IPCAT2003. He is also a member of the program committee of the 5th International Conference on Evolvable Systems: From Biology to Hardware, ICES'03, of the 7th European Conference on Artificial Life, ECAL2003, and of the NASA/DoD Conference on Evolvable Hardware, EH-2003.