In the bygone days when graphic novels were just comic books, much of the innovation that sprung from the medium stemmed from the need to fill 32 pages or so of a comic with new material. Some cartoonists, when faced with these blank pages, responded with unbridled experimentation - these pages were where the weird and wonderful tended to flourish. Comics Dementia collects the best of such work by Gilbert Hernandez, one of the world's greatest living cartoonists.