Riemann curvature revisited
Chapter in General Relativity for the Gifted Amateur, Oxford University Press (OUP) (2025) 363-373
Robertson–Walker spaces
Chapter in General Relativity for the Gifted Amateur, Oxford University Press (OUP) (2025) 169-180
Special relativity
Chapter in General Relativity for the Gifted Amateur, Oxford University Press (OUP) (2025) 12-21
The Big-Bang singularity
Chapter in General Relativity for the Gifted Amateur, Oxford University Press (OUP) (2025) 547-553
The Friedmann equations
Chapter in General Relativity for the Gifted Amateur, Oxford University Press (OUP) (2025) 181-187