John Ziman is well known internationally for his many scholarly and popular books on condensed-matter physics and on science, technology and society. He was born in 1925, and was brought up in New Zealand. He took his DPhil at Oxford and lectured at Cambridge before becoming Professor of Theoretical Physics at Bristol in 1964. His research on the electrical properties of metals earned his election to the Royal Society in 1967. After voluntary early retirement from Bristol in 1982 he devoted himself to the systematic analysis and public exposition of various aspects of the social relations of s...