What screenwriting books are best?

Everyone has asked themselves what screenwriting books are on the market that are good? I have a few recommendations for everyone that can be found online at amazon for very low prices. They are some of the best in their fields having taught writing at major universities like Richard Walter at UCLA and people like Robert McKee and Syd Field who for decades are considered the most influential screenwriting teachers out there. I have included their books,audio books and DVD courses all on my favourites list to provide you with a few I personally found to be the best on the market. It also features writers like John Jarrel who wrote Tough love screenwriting who just happens to be working on Jarhead 3 at the moment. It has the very best working screenwriters books that provide all the info you will ever need! Go to amazon and get your copies today! I have found them helpful and I am sure you will too! Here is a link for my favourites.