Books, maybe online pages
but what I would do is to use a PC and check the equalizer settings (assuming the audio stuff/drivers is properly installed) in the Audio panel as a start. It would normally have equalizer settings for a variety of music (rock, jazz, classical, pop, etc...) You can even simulate room conditions (arena, church, living room, padded cell, toilet, etc.) with the equalizer settings it shows. I think it would normally have about 20 different equalizer settings by default.
do you know where can i buy any books 2 tune my 31 band equalizer?