Charles Bettelheim This is the author's preface to the third volume (first part) of his Class Struggles in the USSR which is due to be shortly published in India, The text has been translated from French by Ramnath Narayanswamy THE appearance in English of the third volume of Class Struggles in the USSR comes 10 years after its publication in French, 10 years of economic, political and social upheavals of exceptional importance. These upheavals have directly touched those countries who claimed allegiance to socialism and have produced enduring effects on the international scene, one of which lies in viewing the current transformation as a testimony of the 'failure of socialism1.