▁Wood . ▁ ▁When ▁asked ▁about ▁the ▁changes ▁from ▁the ▁previous ▁Dun geon ▁Master ' s ▁Guide , ▁Rich ▁Red man ▁said : ▁ ▁The ▁D & D ▁Dun geon ▁Master ' s ▁Guide ▁( v . 3 . 5 ) ▁was ▁reprodu ced ▁as ▁a ▁prem ium ▁repr int ▁on ▁September ▁ 1 8 , ▁ 2 0 1 2 . ▁ ▁Dun ge ons ▁& ▁Drag ons ▁ 4 th ▁edition ▁ ▁The ▁ 4 th ▁edition ▁D & D ▁Dun geon ▁Master ' s ▁Guide ▁was ▁released ▁on ▁June ▁ 6 , ▁ 2 0 0 8 , ▁at ▁the ▁same ▁time ▁as ▁its ▁companion ▁volumes . ▁It ▁is ▁a ▁ 2 2 4 - page ▁hard cover ▁written ▁by ▁James ▁Wy att . ▁The ▁front ▁cover ▁illustr ation ▁was ▁by ▁Wayne ▁Reyn olds ▁and ▁the ▁back ▁cover ▁illustr ation ▁is ▁by ▁Brian ▁H agan , ▁with ▁interior ▁illustr ations ▁by ▁Rob ▁Alexander , ▁Steve ▁Arg yle , ▁Wayne ▁England , ▁Jason ▁Eng le , ▁David ▁Griff ith , ▁Esp en ▁Grund et j ern , ▁Brian ▁H agan , ▁Ralph ▁H ors ley , ▁Howard ▁Lyon , ▁Lee ▁Mo yer , ▁William ▁O ' Con nor , ▁Wayne ▁Reyn olds , ▁Dan ▁Scott , ▁Ron ▁Spe ars , ▁Chris ▁Stevens , ▁Anne ▁Sto kes , ▁and ▁Eva ▁W id ermann . ▁In ▁addition ▁to ▁a ▁compreh ensive ▁look ▁at ▁how ▁to ▁DM ▁a ▁ 4 th ▁Edition ▁campaign ▁or ▁advent ure , ▁it ▁contains ▁information ▁on ▁building ▁enc oun