I just finished Dirty Money, which turns out to be the last Parker novel (author Donald Westlake, who wrote the Parker books under the name Richard Stark, died in December).
Dirty Money is a typical – meaning damn good – Parker novel. And like the others, it leaves you wanting more. Parker stories rarely end cleanly, with the maiden rescued and the treasure secured. I think that’s why once you discover these books, you tend to read them three or four at a time.
In fact, Dirty Money is best understood as the last in a three-book run that centers on a single (botched) armored-car heist. Start with Nobody Runs Forever, stick with Ask the Parrot (which is, I must say, the weakest-ever Parker book), and then read Dirty Money.