'Guerilla Jiu-Jitsu' is a book that seems primarily designed for Brazilian Jiu-Jitsu practitionners to improve their stand-up grappling game with the Gi. But it certainly is a good buy for students of other styles as well.
It contains a lot of Judo techniques concerning grips, throwing and as a nice bonus the last part of the book gives instructions on flying armbars, triangles and omoplatas ('shoulder-locks'). The aim of Dave Camarillo's Guerilla Jiu-Jitsu is to set up a submission with the grips formed before the fight hits the ground; so whilst setting up for the throw or takedown you are already setting up for the submission. Once the throw has been completed you can use the same grips to transition instantly to the submission. And the, of course, with flying attacks the fight can be over before it hits the ground.
Whilst the instruction the book provides is very clear and very concise I do have one really minor issue with it. That is that Camarillo demonstrates certain techniques like the Koshi Guruma well, but makes it clear that a slightly different method is required to do it in Jiu-Jitsu competition without you opponent jumping on you and securing the Rear Naked Choke. He vaguely describes this method, but does not demonstrate it in the pictures leaving it up to you to play about with it and make it work.
It contains no actual instruction on intricate submissions, counters or complex positional groundwork but this is what I like about it! The ammount of literature produced on groundwork by the Gracie family alone is colossal, and that's before factoring in other publications by people such as Jean-Jacques Machado or Eddie Bravo. So its assumed that you are buying this book for reasons other than groundwork. If you want a book concerning complex groundwork this is not it; choose something else! But if you are looking for a great book on integrating the throws of Judo with Brazilian Jiu-Jitsu then this is certainly the one for you.