I love the way Ms. Barr draws on her park ranger experience to create suspenseful thrillers set in many U.S. national parks. For an inmate who doesn’t have much scenery these days, I love the imagery Ms. Barr creates in her novels. It’s obvious that Anna Pigeon is an extension of Nevada Barr. She is easy to read and I love going to places in these books that I would never otherwise see or experience.