"Being effective is learning to do ‘that which produces the desired result’.
If you want to be extremely successful in business or very happy in life or achieve some large goal, then being effective is consistently doing the things that will bring about the results you are after.
Perhaps the best overall prescription for becoming effective is contained within Stephen Covey’s best-selling book The 7 Habits of Highly Effective People.
Published by Simon & Schuster, this book provides a useful, sequential framework for understanding much about the process of Personal Development. Covey does not claim to have invented the 7 habits, but rather to have discovered them and to have found a simple language for articulating them. In fact, he says that these basic principles of effectiveness may be found in all world religions; and it can be noted that many highly successful people seem to have naturally developed them."
So far the introduction quote from a very interesting and worth reading review on the book "The 7 Habits of Highly Effective People".
The complete review can be found here on Khmer Campus: http://khcampus.wordpress.com/2010/01/28/the-7-habits-of-highly-effective-people/
I have read this book a few years ago, it is really worth reading, but from my experience must really be read from the beginning to the end. And it is not just easy read, the book and its content need attention and time, specially if the reader wants to apply the techniques and ideas of this book in his personal and business life. But I can highly recommend this interesting book, its really worth reading.