Author Ray Bradbury, who wrote some of the classics in science-fiction literature, died on Tuesday in Los Angeles.
"For many Americans, the news of Ray Bradbury's death immediately brought to mind images from his work, imprinted in our minds, often from a young age," President Obama said in a statement.
"His gift for storytelling reshaped our culture and expanded our world. But Ray also understood that our imaginations could be used as a tool for better understanding, a vehicle for change, and an expression of our most cherished values."
Many of Bradbury's works reflected the national and international political situations of the times in which were written, such as The Martian Chronicles, which dealt partly with nuclear war and still resonate in the 21st century.
Below are some photos from the career of Bradbury, one of 2012's notable deaths.