This treatise is a sequel to the first volume of Knowledge of Knowledge and consists of fourteen chapters with specific names given to each chapter. As mentioned on the cover itself it is essence of Knowledge that is given in the text. It is also mentioned by the Master that Knowledge of Knowledge is Knowledge of Oneness, which in Sanskrit is called Vidya or more precisely Paravidya. As in volume I, here also the Master has provided analytical study of the subject through diagrams, charts and tables wherever needed. Each chapter has sections with titles. It cover all spiritual aspects specially the ones arising from Vedic following and then the Master has given His own interpretation as also truth that often is hidden. Self-identity is established through rational analysis. The last chapter contains the song of self-identity.