My task is to tweak Google Analytics to fit complex needs for statistics of our website.
Google Analytics looks quite straightforward but on the other hand it seems to have lots of advanced features and endless possibilities and I don't want to learn by trial and error. I want to approach this task professionally.
What book, website or other resource would you recommend for studying purposes.
I read the Brian Clifton book last summer, and it was pretty decent for a high level overview. Check out the associated blog too. Check out the Brian Clifton book
Amongts Clifton's book, I recommend you to take the Google Analytics Individual Qualification test for which there is a lot of related lessons in the Conversion University, and get subscribed to the official Analytics blog to keep yourself up-to-date with the new features.