Nothing in the book itself regarding the author. I found the following at the School of the Museum of Fine Arts, Boston, where Angier appears to teach.
Roswell Angier (photography, Studio at Tufts) was educated at Harvard University and University of California, Berkeley. Angier has worked for commercial magazines and on numerous documentary projects. Books include A Kind of Life: Conversations in the Combat Zone (Addison House, NH, 1976), and Train Your Gaze: A Practical and Theoretical Introduction to Portrait Photography (AVA Books, 2007). His work is in the collections of the Museum of Fine Arts, Boston, and the Fogg Museum, Cambridge, MA. Angier's exhibitions include solo shows at Howard Yezerski Gallery, Boston, and Gitterman Gallery, New York. Current interests are landscape and narrative. He is currently working on Revere Beach Boulevard, a project about the sea wall.
Angier is currently represented by the Gitterman Gallery in New York City. A substantial amount of his work can be seen on the gallery's web site, www.gittermangallery.com.