The following article is by John Garratt and Brian Mattinson .
Writing is one of our indispensable means of communication.
For undergraduates it is also one of the means by which their understanding of their subject is assessed. Effective writing is therefore an invaluable skill. You can also learn by reading widely and thinking critically about the quality of what you are reading. But you need constant practice to develop the clarity and conciseness of style that is essential to good scientific writing. When you have thought clearly, you have never had any difficulty in saying what you thought.