Charting the hybrid architectural style of quantum theory.

Given how thoroughly the history of quantum physics has been excavated, it might be wondered what these two hefty volumes by a physicist (Duncan) and a historian (Janssen) bring to the table. Aside from their inclusion of a wide range of recent work in this area, including some notable publications by themselves, the answer is twofold: first, as they state explicitly in the preface to the first volume, derivations of the key results are presented 'at a level that a reader with a command of physics and mathematics comparable to that of an undergraduate in physics should be able to follow without having to take out pencil and paper' (vol. 1, p. vi). In response to those who might raise Whiggish eyebrows, I shall simply play the 'you-try-reading-Pascual-Jordan's-groundbreaking-work-in-the-original' card. As the authors suggest, by using modern notation and streamlining derivations whilst also, they maintain, remaining conceptually faithful to the original sources (ibid.), the book is rendered suitable for classroom use, albeit at the higher undergraduate or graduate levels.