I recently read "Vanity Fair", which was illustrated by Thackeray himself. What do Litnetters think of illustrations? Can they influence our imaginations in a negative way (like seeing a movie of the novel might)? Are they more "legitimate" when created by the author instead of a professional illustrator?
Of course children's books generally include illustrations -- slowly diminishing in frequency as the child ages and moves from "picture books" to "chapter books". I can't remember which authors provide their own illustrations (Tolkien's, in the Hobbit, were good but perhaps amateurish), except for Thackeray. I enjoyed Vanity Fair's illustrations, although I'm not sure if they added to the text (except for the picture of Becky as napoleon, and the other one representing her as Clytemnestra).
What do other Litnetters think of illustrations, especially in adult novels?