Looking for 800 page book recommendations, please

Roberto Bolano - 2666
One of the greatest novels I've ever read. It's a sprawling masterpiece largely set around a reclusive/lost German author and the world of literary academia, and also about the shocking scale of everyday violence against women in a Mexican city. It's distinctly strange and beautiful. Incidentally, I've found everything else I've read by Bolano quite dull.

Susanna Clarke - Jonathon Strange & Mr Norrell
I guess this is the big hitter, sales-wise, of my recommendations but like 2666, it's a strange and beautifully written book. Not exactly heavyweight, but it shouldn't be disregarded just because of its popularity.

Paul Auster - 4 3 2 1
Last year's magnum opus by Paul Auster, more famous for his New York Trilogy. This is also very much a New York book, but the title is really about the structure of the book, following the life of a man growing up in post-war NY, the same story 4 times but with major events in his life being slightly different in each, taking his life in different directions.

Luther Blissett - Q
Another genuinely great book, written by four authors anonymously under the pseudonym of an English footballer. It's an old-fashioned swashbuckler, a proper adventure, but also a book about organised anarchic protest and the violence and horror of the protestant reformation.

Though a mere 736 pages, Norman Mailer's The Naked and the Dead is a truly great war novel and might merit your attention.

I have one that is 544 pages. PRIM. It is a book with 544 page's worth of strategies on how to deal with unruly students. Five hundred and forty four freaking pages that I can't just throw at the kid in question.

Gravity's Rainbow and Infinite Jest. These used to be my favorite novels. My esteem for them has lessened over the years...especially for Infinite Jest...but they're well worth checking out if you're looking for a long, dense novel to consume you.

Lots of history books.

Hah! That’s completely understandable. In that case I recommend you stay the hell away from Infinite Jest as well.