This is what started it all! This book began to open a new door, moving from traditional miniatures wargaming into the world of role-playing games. The rules are quirky and not entirely clear, but as an historical document, priceless. I recommend this booklet if you are interested in the early days of Dungeons and Dragons. I also recommend that you purchase the three booklet set of Old Dungeons and Dragons ("Men & Magic", etc.), recently made available on pdf.