Android Rooting

Hello Fellow Hackers!

Since i'm studying some fundamental stuff about operating systems and architecture, i want to know if you guys have some resources to recommend, in order to understand the process of jailbreaking/rooting a mobile device. Mainly books, because i love books =)

I believe that we should understand as much as we can about such a thing.

what topics should i know, before begin studying/understanding this reverse engineering process?

As always, i'm looking for advices/orientation and resources.

Thank you!