The Cuckoo's Calling, a private detective novel about a down-on-his-luck P.I. investigating the (perhaps) suspicious death of a celebrity (whose nickname was Cuckoo), is a very good piece of detective fiction.
For J.K. Rowling, the act of anonymity represented a big action -- she went to great lengths to remain behind the curtain of a pseudonym -- but it also was a way for her to appear small, and to give pleasure without the burden of fame.
Knowing the book was written by the author of the mega-successful Harry Potter books did change my perspective -- but just a bit. There are certainly some notes that will be familiar to anyone who read the adventures of Harry & Co.
J.K. Rowling tried to go under the radar by using a pen name for The Cuckoo's Calling, but many other great authors spent all or part of their careers involuntarily missing out on the literary cachet and cash they deserved.