cote, i would certainly say that the other two books are worth reading. The second one, Authority, probably the best of them, is written in a more conservative manner and gives a good bit of background. It's probably easier to engage with than the others. I personally found the third rather unsatisfying, you never really find out what the hell is going on or what it all means for the characters, humanity or whatever Area X is. The experience is disjointed, you're v restricted ultimately by the points of view. The story as a whole I think could have been far more developed into a much bigger tale. These modern authors have no stamina! 
Glad i didn't buy Flowers for Algernon now 
Another big taker outer of books from the library but not reading them and keeping them for weeks and weeks and weeks
... you can take out 13 books at my library for 3 w and renew them I think 15 times!!!
No joy with my kindle but I'm counting
9 American Gods by Neil Gaiman anyway because I was almost there when catastrophe struck. Really enjoyed this though I don't know much about mythical gods so had to do some sleuthing. It has a magical effect, I loved the idea of gods springing literally from people's minds and struggling to survive when that belief wanes. The old gods were much more realised than the new, you side with them because Shadow does, a natural affinity with the old. They are not "good" however, nor heroic nor out to save the world. The books also has a lot of tangential plots which usually annoys me if they have little to add to the main plot but here they tended to serve to add insight to the gods' creation and history and were engrossing. The contrast between the old complex mythic gods with their huge human themes of war, sex, lies, death contrasts hugely with the new gods America has produced which are ill defined, unnecessarily malevolent and shallow. The America of this book, despite all the gods, seems curiously godless. Great read.
10 Moon over Soho by Ben Aaronovitch; a library book! Enjoyed this much more than the first actually, PC Grant chases jazz vampires all over London and falls in love, he's getting better at magic and there's a lot of action. Good read.
whew, epic post, thanks for reading!