Aenima is Tool's 2nd full length album and was released in 1996. I definitely think that this album is the heaviest out of them all. This is a great unique "one of a kind" style of hard rock/metal. It's definitely not metal but it is dark, deep, and loud. Almost has a grungy flair but expiremental. It's great for anyone who likes crazy guitars, interesting lyrics, and heart pounding drums. It's something to listen to out of the ordinary for a change. The CD booklet has two complex messages you can read while the art is something else. The actual jewel case itself has a 3D appearance and the artwork moves so it's extra appealing to the eye. 5-6 of the tracks on this album are hit singles and are stilk actually played on the radio today. It's nice to have more than one or two hits on an album. This shows that although Aenima is from 1996 their songs are just as popular today twenty years later. That gives you a clue that you must purchase this album. So, if you want to headbang and listen to some rock with texture then this definitely the right CD for you!!!!