I came across The Books because they're similar to Animal Collective (Feels is a great album) in the last.fm similarity diagrams I've been playing with. Lost and Safe is their latest record. The music is hard to describe, but is oddly compelling. Most tracks are combinations of simple string melodies, odd percussion, manipulated vocals and lots of spoken words from random recordings. It's not quite ambient music, and it's also not the sort of thing you can hum while walking to your car in the parking lot. All the layered melodies, strange spoken words, and descending string progressions really bring a lot of emotion to the music.
My favorite tracks on the album are Smells Like Content, An Animated Discription of Mr. Maps, and An Owl With Knees. Smells Like Content and An Owl are both more straightforward than the other tracks, with nice layered melodies and mostly traditional vocals. Mr. Maps is a percussive tour de force and demands to be listened to loud. It's also got lots of spoken word material, including the great line: "Leaving the friendly aroma of doughnuts and chicken tenders hanging in the desert air." There's also someone reading what sounds like the criminal profile of a serial killer, but there isn't enough detail to figure out if it's from a movie or a news recording.
This is certainly not music for everyone. But if your tastes tilt toward the experimental and are looking for a change, give The Books a listen. I'm looking forward to picking up their previous two albums (Thought For Food, The Lemon of Pink) in the near future.