I understand.
You do? What can you tell me about Nabokov and Pale Fire?
Pale Fire is a poem that was written in 1962.
It's only partially a poem. It's a novel which takes the form of first, a poem, and then a kind of insane commentary on the poem.
It's regarded as Nabokov's great piece. There are many radical interpretations. 
Can you give me a title for any of the most recent book-length pieces of criticism on Pale Fire?
I can not but I do know that Brian Boyd has more insight into Pale Fire 
Yes, he wrote a book-length study of the novel, also a two-volume critical biography of Nabokov. I have both of these titles in my library. I happily recommend them to you! But I'm looking for something more recent.
I will certainly look him. It seems he has written other books like Letters to Vera
Boyd edited that collection of Nabokov's letters to his wife, Vera, along with a translator, Olga Veronina. I have that too.