The book proves that without taking into account the influence of I. Kant on E.T.A. Hoffmann, much in his work turns out to be obscure. The features of the worldview of the writer and his artistic style developed under the influence of the personality of the great thinker and his philosophy. The book is intended for a wide range of readers familiar with the work of E.T.A. Hoffmann and interested in the relationship between philosophy and art.