Best book/video/education on building deal finding process?

[Jason Krawitz]

Greetings BP folks! 

What are the best books/videos/educational resources those of you that are KILLING IT would suggest for a newbie that wants to master the art of filing his funnel with GOOD deals. 

I devoured "The Book On Flipping Houses" in 1 day cover to cover. The book touches on marketing but I find myself thirsting for more on that topic. Of all the topics in the book. this is the one I have the least experience and need to learn the most.

I spent a day with a succesful investor driving door to door (very inefficient but I can see why it works!) in search of face to face conversations with newly published foreclosures. We/He obtained 3 leads that day and left information on 20+ other doors that might call some-day. 

I have time, energy, financial resources, and an unrelenting work-ethic. I am comfortable talking to anyone face to face. However, I want to read more and learn more about the entire marketing and aquisition process, especially for off-market properties. 

There is no substitue for experience but what's the next best thing from a book/education standpoint? 

Thanks!