Level 1 Superbly written and easily one of the best books about psychology, communication, and neuroscience of all time, Gaivna contains the first and only map of the brain that is amazingly accurate and yet simple to understand, and that informs the most effective neuro-linguistic approaches to controlling a listener's thinking and behavior. Gavina reads like an expose because it is the only book that reveals the biology of decision making and conversational and Ericksonian hypnosis. Whether you feel compelled to learn persuasion or are getting a campus degree, you are going to love Gaivna. Buy it now.