If I ever had to pick one book that has everything I ever found valuable regarding personal achievement, this is the one I would pick. My copy is filled with highlighting and underlining. If you want to grow as a person, yours will be too.
This among the first books Brian Tracy wrote. While still an easy read, it is exhaustive in its scope and scale. Personally, I think Brian Tracy gave away all his secrets in this book and all the others are just streamlined and watered-down versions. Frankly, any book by Brian Tracy is going to be great, but if you are looking for the one-stop shop, this is it.
The only thing bad I can say about this book is that the only audio version available is on cassette tape.
Master Strategies for Higher Achievement (audio book only) by Brian Tracy
This is a great audiobook. I would highly recommend it for everyone. I have listened to my copy more times than I can count.
This is probably best as an audiobook. Henry Cloud has a wonderful narrative style and it is really great to listen to him. The book is inspiring and makes the point that most people miss, which is that integrity is not just about being honest. It is about being whole and complete.
This is another great classic and probably another book where you will want to start with the audio book and move on to the paper copy. Stephen Covey makes the case for value-based living.