Stefan Esser or @i0n1c on twitter just wrote a couple boooks and talks about IOS jailbreaking history as well how you can learn to do it.. I don't think this is a guide for dummies though.. I think some decent knowledge of coding is needed to understand it. but it's worth checking out if your motivated. p0sixninja also writes some pretty good stuff on his blog about jailbreaking. And if you didn't reaf it Plantbeing wrote this that was a pretty interesting read I thought.. http://www.reddit.com/r/jailbreak/comments/oe2n1/why_we_can_never_give_etas_for_jailbreaks/
Thank you! Through that wasn't technical at all.
Nevermind, I just pre-ordered the book. Should be a fun read!