Italian artist Alessandro Diddi has created amazing pencil sketches that appear to be three-dimensional when viewed from certain angles.
In some of the drawings, Diddi cleverly made use of the paper, by folding it in half to create an optical illusion effect. He also used lines and space to create depth within the drawing.
Other than drawing tricks, Diddi managed to create the 3D effect with the help of props or his own hand. For example, he placed a ring on one of his drawings to make it seem like it is resting on the palm of an illustrated hand.
Check out the clever illustrations below.
[via We The Urban, images from Alessandro Diddi]