Just finished 'Subtle is the Lord - The Science and Life of Albert Einstein' by Abraham Pais. Easily the best biography of Einstein.
Currently reading: 'Inhibitor Phase' by Alastair Reynolds (60% read), 'Wayward' by Hannah Mathewson (50%), '10,000 Light Years from Home' by James Tiptree Jnr (50%), 'Rust for Rustaceans' by Jon Gjengset (20%), and 'Hands-on Rust' by Herbert Wolverson (10%).