Book for itsm ?

I am planning to Self Study ITSM for IPCC May 2014 (first attempt).

I initially started preparing with the ICAI study material but found it too lengthy. Frankly speaking I could not understand how to shrink those 15 lines into 5 or 6 lines. 

Therefore, I thought may be referring some other book may help me out.

I am confused whether to buy Dinesh Madan or Padhuka or any other good book that could help in my preparation.

Looking forward to your responses.