I Am a Strange Loop by Douglas Hofstadter is a curious book. It’s written in a conversational style, but it is by no means an easy read. The author draws on ideas from mathematics, physics, computer science, and philosophy to explain his thoughts on consciousness. The complexity of the subject matter and the author’s writing style make it difficult going at times, but if you have an open mind, are fascinated by questions of human intelligence, and enjoy an intellectual challenge, I think you’ll find it worth the effort.