Something that students at Toronto BJJ should have to use as a study aid is Saulo Ribeiro's Jiu Jitsu University. You can buy it at Amazon for $30!

There are over 200 techniques laid out with full picture explanations to show in detail the specific's of each move. A useful book for any student of Professor Britto.  Use to fine tune specific details or explore concepts that might work in your game...grab your copy now.

You can also buy it at Toronto BJJ..