This books is good accessory to any AD&D campaign. This books clearly defines outlines magic and it's role in a campaign, including scarity, mystery, cost, and world view. Also included is many new schools of magic, new classes (monk, crusader, and shaman), and redefines bardic magic. In addition there are new non-weapon profiencies for wizard and priests and heaps of information regarding spell research and magic item creation. A complete list of spell components are included as well, as long with cost and rarity. Lastly, the book have information on alternate rules such as spell point, critical strikes, and custom character creation. The only reason I didn't rate this book higher is that some of this information is tedious and isn't all that useful in my campaign. It still is great accessory to any AD&D campaign. The new rules and spells should be enough for most players!