More Marketing Books you should read

Since my last list I felt a bit ashamed that I'd missed some classics out. To re-dress the balance here are a few more marketing books you should read.

1. Purple Cow - Seth Godin
2. Full Frontal PR - Richard Laermer
3. Naked Conversations - Robert Scoble and Shel Israel
4. Commonsense Direct & Digital Marketing - Drayton Bird
5. Open for Business, How to write letters that get results - Courtney Ferguson
6. The World is Flat - Thomas L Friedman

I've read all of these and they've helped shaped my marketing view. If you've got any recommendations or views on these books I'd love to know.

Here's a link to my previous list of Marketing Books you should read.