A book entitled "Observations on the Sermons of Elias Hicks, in Several Letters to Him; Together with Some Introductory Remarks, Addressed to the Younger Members of the Society of Friends," by Robert Walln. In this work, the author provides a critical analysis of the sermons of another spiritual teacher in order to help younger members of the Society of Friends better understand and appreciate the teachings of this religious community. The book contains letters to Elias Hicks, questions and reflections on his sermons, as well as reflections on the importance of following the orthodox principles of faith among young people. Robert Walln offers readers deep reflection and critical thinking skills, developing key aspects of spirituality in the context of the religious experience of the Society of Friends.