Ludovico Einaudi, Michael Nyman, Thomas Newman, Boards of Canada, M83, Gustav Holst, God Is An Astronaut, Mike Oldfield, Atrium Carceri, Portal, Ulver, Helios, The Ascent of Everest, The Autumn Project, Priestbird, The Mercury Program, Sigur Rós.
They are all the things in my reading playlist. Post-rock/classical/ambient stuff. Einaudi/Boards Of Canada/Ulver/Sigur Ros are probably my favorites.