The first volume - "The Science of Logic" contains Hegel's doctrine of the dialectical development of the concept. The second volume, Hegel's Encyclopedia of Philosophical Sciences, contains a newly verified and newly edited translation of the Philosophy of Nature. This work of Hegel is an interesting attempt to comprehend from a philosophical point of view the knowledge of nature that was accumulated by the beginning of the 19th century. The third volume - "Philosophy of the Spirit" - is the final part of Hegel's Encyclopedia of Philosophical Sciences. This work reveals the teaching of the German philosopher about man, human consciousness and types of activity and consists of three sections: subjective spirit, objective spirit and absolute spirit, which are understood by Hegel as stages of self-development of an idea.