Honestly, I don't understand the way he explains things. The maths is difficult to follow, and it just never clicks for me. Maybe he's writing for someone with a physics background or something, but I feel stupid when I read bishop.
I just read over his description of how to transform a uniform random variable into a variable with a desired distribution (p. 526). It's a fairly easy trick, but if I didn't already know it I wouldn't understand his explanation