Passing the guard has been covered by many Jiu Jitsu masters on DVD but none have done it this well.  Darlynson Lira taught by his father from when he was young, is a master of Brazilian Jiu Jitsu.  You will learn how to pass the Spider Guard, Closed Guard, Butterfly Guard, Z Guard and all the rest in between. His attention to detail will allow you to take these skills to much more advnced levels but as he says you must learn the basic mechanics first before you can advance to the more difficult techniques and this is exactly what he does so masterfully.