Pablo Picasso (25 October 1881 – 8 April 1973) is widely regarded as one of the greatest and most influential artists of the 20th century. He is known for co-founding the Cubist movement, the invention of assemblage, the co-invention of collage, and for the wide variety of styles that he helped develop and explore. [source]

Picasso was exceptionally prolific throughout his long lifetime. The total number of artworks he produced has been estimated at 50,000; comprising 1,885 paintings, 1,228 sculptures, 2,880 ceramics, roughly 12,000 drawings, many thousands of prints, and numerous tapestries and rugs.

Of those thousands of paintings were a number of self-portraits through the years that often reflected the various periods of his artistic career. Below you can find 14 self-portraits from ages 15 – 90.

[Sources: reddit, Bored Panda]