Writing a novel backwards can't be easy, and reading one that's been written backwards wasn't a stroll in the park either. Well done Jeffery Deaver for attempting to do it. It all turned out well in the end (or should that be 'at the beginning'?) but please don't do it again.
To explain, The October List starts (at chapter 36) with a kidnapper arriving at an apartment and pointing a gun at the mother of the kidnappee, and a guy who's there to keep her company. In the next chapter (35) two other guys set off to negotiate with the kidnapper for the child's safe return. In the chapter after that (34) four people arrive at the apartment to await the kidnapper's instructions. Then after that... Well, you get the idea.
It wasn't easy to follow. And when I got to the end (chapter 1) I had to go back to 36 to check out exactly what had happened all the way back then.
Part way through I was convinced I knew what was going to happen (had happened but I hadn't read yet) and to a point I was right. I didn't guess it all. I should have known with Deaver that he still had a few twists in the plot. It was a good story. But I'd been so preoccupied trying to make sense of the backwards timeline that I didn't really enjoy it. Which is a shame.
If you're a Jeffery Deaver fan by all means give it a go. You'll stick with him because you know he'll spin a good yarn eventually. But if you aren't familiar with his work, don't start here. It will put you off reading any of his other excellent books.