I think this great book that ever written to date. I trully loved it. From this link you can easily download it.
Also for more free twitter books click here.
Posts Tagged twitter books
Twitter Resources#1
Books
Although Twitter is a new trend, there are lots of twitter books which are released immediately after boost of Twitter.com. And now i will give some suggestions about books. These are popular ones and I think you should read them before the others do not read.
2) Twitter Power: How to Dominate Your Market One Tweet at a Time
5) Twitter Top Success Secrets and Best Practices: Twitter Experts Share The World’s Greatest Tips
Twitter Tips 