Hardboiled America is a key book for both mystery fans and paperback collectors. As a collector I first purchased the book for its reproductions of classic paperback covers. Hardboiled America's strong point, though, is its provocative and detailed coverage of niche authors. I credit O'Brian for introducing me to many of my favorite books and writers.
When first published, few of the authors discussed in O'Brien's book were in print. Thankfully, with the resergence of interest in noir fiction in the past decade and a half, books by the likes of Jim Thompson, David Goodis, and many others are easy to find. This is a relief, as readers of Hardboiled America will be inspired to seek out the work of numerous authors discussed within.