The Colle is a system which can be learnt pretty easy because it employs only a limited amount of stretegic ideas. While this makes it a good practical opening choice for players of sub-professional level, you need more original plans to actually play for a win a master game - as shown by Anand these days Probably that's the reason the masters don't use the Colle so often.
I'm sorry, but I don't know which books to recommend on the Colle, as my relation to this system is not one of sympathy...
However, if you want to progress in chess and learn a larger variety of plans, I suggest after some time you adopt another opening as White.
I have found to love the colle. I am still a beginner (ELO 1600), and was wondering if there are any books you could recommend. Another question that I have : why are there so few master games that play the traditional colle?