Linux kernel primer VS understaing the linux kernel .. ur comments

["Rahul Ramasubramanian" <ramasubramanian.rahul@xxxxxxxxx>]

hi 

has anyone read the book "linux kernel primer " by CLAUDIA SALZBERG RODRIGUEZ / GORDON FISCHER / STEVEN SMOLSKI.? 

which is a better book to start understanding the kernel.... this one or the one by Bovet and cesati " understanding the linux kernel 3rd version"..
actually i am reading the second chapter from "Understanding the linux kernel " , but it is very cryptic and there are no hands on exercises...
please suggest the correct approach,,,
kind regards
rahul