There have been a number of books published that allow you to take a self-assessment within the book or authorize you to take one online and then provide a more complete understanding of who you are within the book.
A new book, "Personality Power: Discover Your Unique Profile and Unlock Your Potential for Breakthrough Success" by Shoya Zichy allows you to categorize the personality style of yourself and others. Drawing on the work of human behavior pioneers like Carl Jung and Isabel Myers (Myers-Briggs Type Indicator), the author's proprietary "Color Q" model sheds understanding on people through the lens of their natural, observable personality type: Green, Red, Blue or Gold.
There are four parts to the "Color Q" assessment and one supplemental section. Together, they take you about 10 minutes to complete by selecting your preferences within the book.
Other self-assessment books available online or at your local bookseller (see examples below), direct the reader to take an online assessment and then an email report is confidentially delivered to the person who took the self-assessment while the book references detailed information on the various personality styles/classic profiles.
The key to enjoying and succeeding at work and life lies in knowing your core strengths--and making the most of them. Are you an Introvert or Extrovert? Grounded, realistic and accountable? Competitive and theoretical? Spontaneous and action-oriented? Creative and empathetic? To find out, get a clear blueprint for using your natural abilities more effectively by taking one or more self-assessments to determine your personality type and what you do best.
Introverts and Extroverts
Many people believe that introverts, by definition, are shy and extroverts are outgoing. This is incorrect. Introverts and extroverts differ in how they process information. Introverts get their energy internally. Extroverts gain energy from being with other people, often the more the merrier.
There are shy extroverts and outgoing introverts. Most of us have a little of both in us, but lean one way or the other.
Introverts often prefer to spend time alone or in small groups of people, and they tend to carefully gather their thoughts before they speak. Extroverts love to talk and typically "think out loud," processing information by talking.
You don't need a degree in psychology to see how this could cause serious problems in a relationship. Introverts and extroverts approach the world in fundamentally different ways. Introverts think extroverts talk too fast, too loud and too much. Extroverts often believe introverts are awkward, withholding or cold.
In today's social-media driven world, it's getting easier for introverts to speak on their own terms, yet it's also getting harder to turn the extroverts off.
For more informational postings on self-assessments, go to: http://coachingtip.blogs.com/coaching_tip/self_assessment/
For a directory of self-assessments, go to: http://www.selfassessmentcenter.com/
Here is a list of some "self-awareness" books to get to know yourself better.

Marcus Buckingham: StandOut: The Groundbreaking New Strengths Assessment from the Leader of the Strengths Revolution Tom Rath: StrengthsFinder 2.0