The following books may be of great resource to you:
Strengths Finder 2.0 by Tom Rath
The Compound Effect by Darren Hardy
Now Discover Your Strengths by Marcus Buckingham & Donald O. Clifton, Ph.D.
Winners Never Cheat by Jon M. Huntsman
7 Habits of Highly Effective People by Stephen R. Covey
Talent Is Never Enough by John C. Maxwell
Consider Your Ways:Experiencing God by Discovering His Character by Eric L. Warren