It's a blog! Mainly of book reviews.
Initially I struggled as I felt like it wasn't clear that this was a biography of Paul Dirac rather than his brother, Felix, or his father, Charles. At the point where Paul left Bristol for Cambridge, however, it got more focused and therefore better.
Random fact; the Dirac delta function was first invented by Fourier, which is not that much of a shock, given how useful it is in Fourier analysis and how crap Science is at properly crediting the right people when it names stuff.