The PHBR (Player's Handbook Reference) series is one of the most highly-regarded, and yet much-maligned, series of supplements ever created. Each sourcebook takes one of the races or classes of the AD&D game, and adds to it huge amounts of new detail - new equipment, spells, kits (sub-classes), lore, new rules, etc. The problem is that the players love these so much that the DM often feels compelled to buy into the rest of the series - an expensive proposition! Fortunately, these works were "reprinted" in the excellent AD&D Core Rules CD-ROM. This one introduces the powerful and alien class of the Psionicist - if you are not running a Spelljammer or Dark Sun campaign, you will want to think VERY carefully before allowing this class to players! The power and versatility of these characters is amazing. Details of this book include: the Psionicist class and restrictions, a full explanation of psionic powers, disciplines, and advancement, special abilities, the powerful Wild Talents, psionic combat (a great system), the great powers (Clairsentience, Psychokinesis, Psychometabolism, Psychoportation, Telepathy, and Metapsionics), running a psionics campaign, and great monsters! It's a wonderful book - and used carefully, it will add a whole new dimension to your games.