The book "Observations on the Prophecies of Daniel and the Apocalypse of St. John" by the outstanding scientist Isaac Newton opens to the reader a fascinating analysis of the prophet Daniel and John the Theologian. The author examines the symbolism, prophetic verses and events from these books, based on his fundamental scientific knowledge. Newton tries to decipher and reveal to the reader the essence and meaning of prophetic revelations, using his own research and treatment of sacred texts. This book has become a real treasure for those who are interested in the study of prophecy and wish to deepen their knowledge of biblical eschatology.