Seems to me the book was recommended, and I learnt a bit about it before I bought it. Seems like that's normal, is it not? It's been on my to-read pile for a while.
Meaning it's a book about a man who is in love with at least one young girl and thinks that's normal. What else would I mean?
At the risk of getting off topic, Lolita by no means presents attraction to children as "normal." The protagonist is an adult male (Humbert Humbert, and even Nabakov specified he chose that name to make Hum sound as gross as possible) who is only attracted to young girls between the ages of 9 and 12. (Nymphets, he calls them.) Though Humbert spends most of the narrative insisting he is a nice guy and his lust for 9, 10, 11, and 12 year olds is totally normal; and that adult women are, in fact, revolting, the reader is clearly meant to think otherwise.
Lolita teems with countless interacting themes-- the illusionary nature of love; the desire for (and ultimate impossibility of) possessing another human being; the nature of violation and exploitation; the cultural clash between old world Europe and modern America; the universal fear of aging, the passage of time, and the desire for all of us (In our own way) to recapture our youth and innocence. However, one theme that I'd most definitely say that Lolita is not aimed at is "young girls are sexy, and it's cool to seduce them." The way Humbert Humbert abuses, exploits, and violates Dolores Haze (an occasionally typically pre teen obnoxious, but ultimately sweet, strong, and horrifically exploited little girl) is utterly inexcusable, leeches her of her life and innocence, steals her childhood, and ultimately leads to her horrible destructive end.
Nabokov never makes any bones about the fact that Humbert is a pervert and his feelings for Lolita are unambiguously wrong and gross. He does make Humbert a believable, living character who fascinates and, at times, earns the readers sympathy (generally when he drops the b.s. about being sexually attracted to kids is some sort of supperior lifestyle, and admits he's a wanking pervert), however, he by no means excuses his perversions or the way he destroys an innocent girl by acting on them.
Nabakov also repeatedly stated in interviews that he considered Humbert a sicko and that he hoped sympathy would be with poor Lolita. He also clearly didn't intend for the book to be sexy, but to be beautifully written and affecting. Which it is.
In the end, Lolita by no means advocates pedophilia, nor illustrates the writers hidden preferences. The fact that a few lone weirdos have written essays about how the book is, in fact, about "an academic man seduced by a wicked girl" or something like that is not really Nabakov's responsibility.