comment on structure

God in the Dock is a compilation of forty-eight of C. S. Lewis' essays, interviews, lectures and papers, along with twelve of his letters. The book is divided into four parts. Part I is composed of the twenty-three essays which are most clearly about theological matters. Part II includes the sixteen essays the editor sees as "semi-theological" or related to theological topics but not directly concerning them. Part III contains the nine essays that are directly concerned with ethical questions. Part IV is a brief compilation of twelve of Lewis's letters.