• Introduction; Bohr; The State-vector and Probabilities; The Pilot-field; Operators and Physical Quantities; Measurement; Realism; Kocken and Specker; Stapp and Eberhard; Heywood and Redhead. Appendices; Operators and Physical Quantities; Advantages of the Operator Representation; Degenerate Physical Quantities; The Density Operator Formalism; The Density Operator of Sub-systems; The Product of Pure States; Impossibility of Reduction; The Bork Interpretation; The Principal; The Independence of Pure States; Contextualization; Index of Principles; Bibliography; Index.

`The writing is admirably clear and Krips goes to great pains to explain the formal devices he uses ... a careful reading should be able to bring the relatively uninitiated right up to the cutting edge of research in philosophy of quantum physics.' International Journal of Philosophy