Quantum field theory is one of the most exciting areas of contemporary physics, posing problems of great theoretical and philosophical interest. This study is a systematic attempt to explore the nature and implications of the theory.

The contributors approach QFT from a variety of standpoints. Part I offers two different interpretations of the value of studying the foundations of QFT as an area of separate metaphysical research. Parts II and III consider the metaphysical and methodological implications of such issues as the problem of the status of virtual particles; the technique of renormalization; and the role of covariance principles. Part IV examines the mathematical foundations of QFT.

'the book offers a substantial and stimulating commentary on GFT as an object of philosophical enquiry ,,, the book offers a solid, useful and much needed beginning, and is for the most part clearly written and always clearly presented. I urge anyone with an interest in the subject to acquire it.' C.A. Hooker, University of Newcastle, Philosophy of Science