Tom GauldCause and Effect

Tom Gauld just posted these two images on his twitter feed, offering a nice little glimpse into his working process.

If you don't know...
Tom Gauld is a Scottish illustrator with a knack for combining sophisticated deadpan humour with a disarmingly simple visual approach for great communicative and comedic effect. His work can most often be seen in The Guardian, he has a website here and is on twitter here