A few tips on editing and proofreading your work.

http://www.youtube.com/watch?v=N3sQKVmySeQ

6 Tips

1.  Learn the skills of Editing and Proofreading

2.  Edit the piece multiple times

3.  Set it aside for some time between each edit

4.  Hire professional Editors and Proofreaders

5.  Review the work one more time before publishing

6.  Know your weaknesses