@Rob Bro It is wonderful but far too big to read as a physical book on the tube. It is available as a Chessable course with the excellent Alex Banzea providinging the video, but unless someone knows different, none of Silman's books are available as standard ebooks.

@Alexander Iskauskas Alex, you have such opportunities for both improvement and enjoyment. As a Caro player give Tal Botvinnik 1960 a read for Tal's annotations and some epic chess.