Shooter: the autobiography of the top-ranked Marine sniper by Jack Coughlin.
Good book. Focuses on Coughlin's participation in the 2003 Iraq invasion. Also covers his family relationships and his thoughts on the work by, and changing role of, modern snipers. He writes about the need to dehumanize his targets so he can be successful at his work. In recent author interviews Coughlin has emphasized how he was focused on writing about his feelings and personal reactions, this is not meant as a how-to book on sniping.
There are several online audio interviews with Coughlin that follow-up on issues covered in the book and those interviews are really interesting to hear after reading the book.