Marcus,
As mentioned above, Discover Your Sales Strengths is a good book. However, if you're hoping it will allow you to discover your strengths and then show you how to match them to a particular sales process, you'll be disappointed. It doesn't do that. It doesn't analyze the various strengths each process highlights or the weaknesses minimizes. As a matter of fact, it doesn't even talk about the various processes.
It does, however, give examples of using your dominate strengths.
Once you have bought the book you will have a code that you can use to take the StrengthFind assessment. The StrengthFinder assessment is in my opinion is far from the best on the market as it only highlights what it finds to be your top 5 strengths (what it calls Themes). But it's free with the purchase of the book.