This is the book that Rory is reading at lunchtime in the cafeteria.
It is the diary of Virginia Woolf, edited by the art scholar Anne Olivier Bell, married to Woolf’s nephew, Quentin Bell. It is in five volumes, with the first volume published in 1977, and the last in 1984 (the year Rory was born). Rory is reading the fourth volume (covering 1931-1935), suggesting she has already read the first three, and has almost finished the entire set. Virginia Woolf has been established as one of Rory’s favourite authors. It has also been shown again and again that Rory (and Lorelai) have a great interest in diaries and biography.
The Annotated Gilmore Girls 