"Thirty years on a constant journey" is an impressive literary testimony from the life of the famous preacher and writer V. G. Miller. In his book, the author describes his experiences, adventures, reflections, work and travels during the long period of his ministry. He shares with readers his impressions of trips, meetings with interesting people and the most important moments of his own spiritual development. "Thirty years on a constant journey" is not only the life story of a famous church figure, but also an important document reflecting the religious and cultural situation in the 19th century.