This is one of the rare, old-timer optical illusions. It was taken from a german/french magazine that shows a vintage painting of two funny men. Eventhough they both look like the fatter guy from Laurel and Hardy (don’t remember which one is fat, and which one is thin), artists named them David and Goliath. The thing is that the blond guy (David) looks smaller and weaker then the left one (Goliath). Why is that? You guessed… becase this is another optical illusion… Another thing, if you can read the text and speak german/french please translate this and post it under comments. Thanks!
Edit: Donald Huggan, a professional translator, translated this text from Dutch to English, so be sure to email him if you have simmilar jobs for him. The original translated text follows:
“When you lay the figures next to each other in the same direction it appears that the one in front is bigger. Both are really the same size. Cut out these figures.”