Guitar effects explanation books Can you please suggest some books to get how guitar effects: distortion, overdrive, phaser and so on are achieved ?
DAFX is a pretty good one. 

Harmony Central used to have a surprisingly good knowledgeable base for algorithms but that seem to have disappeared since Guitar Center took them over. 

A lot of source code can be found at http://www.musicdsp.org/, but it's fairly varied in quality.