"Monogram" is one of Robert Rauschenberg's most famous combines. As you can see, he "combined" 2D and 3D elements to create some very unique pieces. The 3D elements (the goat and the tire) have been painted, which adds a 2D feature. The base is also has different 2d parts, such as signs, paint, and other pictures. In a way, he created a sculpture on top of a collage. The piece is meant to be experienced in 360 degrees, so there are many different ways of looking at it.