Emily Kwok’s How to Defeat Bigger, Stronger Opponents was the first DVD series to focus specifically on what it takes for smaller jiu-jiteiros to not only survive but also to defeat opponents that are physically stronger and bigger than they are. For more on Mrs. Kwok I’d encourage you to check out her school’s website. Briefly, she is Canada’s first female BJJ black belt, a world champion (Mundials 2007), and has competed successfully at the highest levels (2nd place at American Nationals, and 3rd place at the Pan Ams). The mindmaps/flowcharts are meant to be used as a study reference and in conjunction with the DVDs, as well as personal instruction. The full set includes five DVDs but the maps are going to specific to DVD 2: Compensating for Strength, and DVD 3: Top Five Moves.