The Psychology of Time Travel is a great book. As a psych major, I found it very interesting to see how psychology and time travel are connected. I loved the angle where the writer explored what time travel would do to a person's brain and especially regarding coping and death. What I loved, even more, is that it makes sense.
But don't worry if psychology is not your thing. It is mostly a murder mystery with a satisfying ending.
The book is told from different perspectives at different times which all end up connected and a cohesive story which I love so much.
So if I were you, I would dive into this mystery especially if enjoy murder mysteries and/or time travel.