(W) Randy Martinez & Denise Vasquez Sketch cards (trading cards with original art on them) are the rage in pop culture collectible art, and there is no other book on the market about how to create them. Sketch Card Mania has 20 dynamic original step-by-step sketch card demonstrations with finished art in color, featuring a variety of popular subjects - heroes, females, males, villains, aliens, science fiction, and more.