This box set has detailed information on the planes that are more or less neutral in alignment with respect to law and chaos. The Beastlands, Bytopia, Elysium are the neutral Upper Planes and Carceri, Gehenna, and the Gray Waste are the neutral Lower Planes. This box set gives extensive information about each of these planes and does a good job of explaining how they interact with the rest of the Outer Planes. These planes are essential the battlegrounds for influence between the greater forces of the Planescape multiverse. The eternal Blood War between the demons and devils, for instance, is waged primarily on the Gray Waste. An adventure booklet is also included to give GMs an idea of the type of adventures that might bring players to these planes. A nice assortment of maps are also included in this excellant scan. Like all of the Planescape books, the pages were originally printed on a strangely tinted paper so the scan, while easily readable, might be difficult to print out (though I haven't tried it). If you're going to get this box set, you really should get the Planes of Law and Planes of Chaos sets as well. They're all unique in their own right, but the Outer Planes are so interrelated that it really helps to have enough information to get the entire picture of the multivers. Besides, as cheap as these downloads are, it's not like you'll have to break the bank to get them.<br><br><b>LIKED</b>: Well written and brilliantly concieved, like most products in the Planescape setting. <br><br><b>DISLIKED</b>: The information on the planes is divided into two books, one for the Lower Planes and one for the Upper. While the start of each book is bookmarked, the entries for the individual planes are not so you have to scroll through the entire booklets to find the plane you want. On the plus side, there are only 3 planes for each book so it's just a minor inconvenience.<br><br><b>QUALITY</b>: Excellent<br><br><b>VALUE</b>: Very Satisfied<br>