Just started my CPL so my tuppence worth.
Fundamantally most of the manouevers are taken straight from PPL, after all you can only take off, turn stall, land and navigate in so many ways. There are no new secrets to be discovered, it is simply a question of how you apply yourself to the evolutions.
For example, at PPL level, a straightforward recovery from a stall would be adequate. As a CPL, you will be expected to stall and then recover to a height and heading you had previously nominated.
Your airmanship is expected to be spot on, your flying accurate and your R/T up to scratch. I've had a few slapped wrists for verbose R/T!
Again, you are expected to provide briefings prior to take off and landing for rotate, climb out speeds and emergency considerations.
In short, for the manouevers and navigation, a high level of refreshment of PPL stuff will help no end. I have yet to find a book specific to the CPL, but I may be wrong,
regards,
Obs Cop