I shop therefore I am 1 Favorite 

I Shop Therefore I Am (1987) is the work of Barbara Kruger . It became an iconic artwork, being reproduced on items such as shopping bags and other consumer products such as t-shirts. Kruger has often derived images from the mass media and pasted the words over them, particularly in Futura Bold . She then uses advertising to design her works.
This famous image comprises a black and white photo of a hand stretching forward, and the white writing I Shop Therefore I Am designed in a red rectangle box in the middle of the portrait. The area where the hand is stretching out is lighter than the rest of the portrait, thus presenting the strong yearning to obtain material possession. The image is surrounded by a red frame, which creates a confined space and more visual contrast.
Kruger associates his work with the modern consumer-driven society. The catchphrase “I shop therefore I am” was borrowed from the French philosopher Rene Descartes “I think Therefore I am’. The phrase means that provided someone is simply thinking; they are livening a meaningful existence, was sufficient proof that they did exist.
Kruger tries to imply with “I shop therefore I am” that the public is no longer defined by what it thinks, but rather by what they own.