Sergio J. Lievano is a Swiss-Anglo-Colombian author. Sergio is a
qualified economist., who also studied comics and illustration in
Barcelona where he developed his cartoonist tal...ver maisSergio J. Lievano is a Swiss-Anglo-Colombian author. Sergio is a
qualified economist., who also studied comics and illustration in
Barcelona where he developed his cartoonist talent. Sergio has published
several books and is currently illustrator and graphic designer for
several Swiss companies.ver menos