This is the book that Rory is reading in the school cafeteria just before she confront Paris about the the gossip she has been spreading about Lorelai and Max.
New Poems of Emily Dickinson, edited by William H. Shurr and others, presents 500 new poems that were found embedded in Emily Dickinson’s correspondence. The book was first published in 1993, and republished in 1999.
This isn’t the textbook that the English Literature class used to study Emily Dickinson, and that assignment is over anyway. It shows that Rory continues to follow up and expand on things she learns at school for her own interest and satisfaction – one sign of an excellent student.