This comic book series by the amazing Masamune Shirow was one of the gateway items that led me into the world of Japanese science-fiction. I have been a huge fan of these graphic novels ever since they first appeared in English. I wish they'd get around to translating volume 5 - it's been out in japan for years. The whole thing is full of beautiful tech and if you happen to be a fan of hardware then I really can't recommend this series enough - it's a gun-lover's dream of a comic strip, with a real focus on real-world tactics and weapon effects. I found it a thoroughly absorbing read and Masamune Shirow has created a world that I would love to visit, just to hang out with the ESWAT team for a bit and ride around in all their cool vehicles.