Kohut believed that narcissistic vulnerabilites play a significant part in the suffering that brings people for treatment. Siegel uses examples from his own practice to show how Kohut's theories can be applied to other forms of treatment. Self Psychology is a vigorous branch of psychoanalysis and should be better known and understood here... I recommend this book as an excellent introduction to the work of Heinz Kohut. - Psychoanalytic Psychotherapy