On Richter's second album, The Blue Notebooks, released in 2004, the Actress Tilda Swinton reads from Kafka's The Blue Octavo Notebooks and the work of Czesław Miłosz. Richter has stated that The Blue Notebooks is a protest album about the Iraq War, as well as a meditation on his own troubled childhood. Pitchfork described the album as "Not only one of the finest record of the last six months, but one of the most affecting and universal contemporary classical records in recent memory." To mark the 10th anniversary of its release, Richter created a track-by-track commentary for Drowned in Sound, in which he described the album as a series of interconnected dreams and an exploration of the chasm between lived experience and imagination. The second track, "On the Nature of Daylight", is used in both the opening and closing sequences of the sci-fi film Arrival.