I just finished Alan Moore's Jerusalem after probably a year. It is hands down the most extraordinary book I've ever read (although I listened to the Simon Vance audiobook, which ordinarily would be heresy but for this book - which relies so much on the sounds of words - particularly the bloody remarkable Lucia Joyce chapter - I would say it is far and away the best way to approach it.)
Anybody with a passing interest in language and how it does and doesn't work should read the Lucia chapter ("Round The Bend") but not without the context of the preceding twenty-five chapters(!)
I can't, and don't want to, explain what makes it so profoundly unique and affecting because it cannot be described and has to be experienced first hand. And besides, it's a 1200-page four-dimensional microscopic and universally-scaled portrait of Northampton. So not an obviously appealing read...
Nevertheless - if you do make the journey through this huge book, please talk to me about it because more than anything I want to chew it over with somebody.