An author is suing the publisher of a book review for criminal libel. The Times article is entertainingly snarky (it doesn't hurt that the author, reviewer, and publisher are all lawyers) but don't miss the exchange of letters between the author and the publisher (it's a pdf), who seem to be friends. Or at least they were.
Although there was that one time a publisher threatened to sue us if we reviewed any more of their books (we did and they didn't, by the way, but they no longer submit their titles for review), most of the flack we get here is about the books we don't review. (Cue Alex Forrest, with a butcher knife, holding a copy of Peter Rabbit.)