The D&D Rules Cyclopedia is undoubtedly a classic. Every rule from the Basic to Masters boxed sets is covered in a very easy-to-read format. Multiple coloured maps of major Known World countries are in this book, along with brief descriptions. Additionally, an entire coloured map of both the Known World and Hollow World. A multitude of monsters are presented, including ones inhabiting the outer planes of existence. Every piece of information you could want about beginning any character and advancing to the hghest possible level also here. Tips for the DM on starting and running a campaign. Every other rule concerning combat encounters (very easy-to-understand) evasion, movement (both on foot and on any conceivable other mode of transportation, from ship to wagon, to horse etc.) Many treasure and magical item tables are very useful. Information on how players advance by acquiring treasure etc. One of the most useful things is a "Balancing Encounters" table which, although optional for the DM, allows him/her to always create fair encounters that will challenge players. Whether you're experienced or a newcomer, this book is truly a must-have, a reference work for D&D players of all levels and DM's.