Illustration for book cover

I need to commission two illustrations that will be used on book covers. They are very simple black silhouettes - one of a man and the other of a woman both using maths skills in real life.

The man needs to be handling cash and the woman using a calculator. These books are maths text books for secondary schools. See the attached file for their English counterparts that are already in print.

I need the illustrations as a vector and to be delivered by close of play on Friday 4 November 2011.