What is the author's style in The Eyre Affair: A Novel by Jasper Fforde?

The novel is written in simple English. Thursday Next lives in England, therefore there are some slang words that might be new to American readers. However, most of the language is somewhat formal, reflecting the literature that plays such a large part in the plot of the novel. There are some foreign phrases in the novel, some of which are not explained to the reader. However, these phrases are few and far between, causing little disruption to the overall flow of the novel.