Very informative book about the Mars mission of the Exploration Rover Mission. Eleven full chapters with photos, captions, and lots of text, probably best fit at the Middle School level, but all will find this an enticing and informative piece. We get a peek into the emotions of the scientists as they wax and wane with elation and defeat with the progress of their amazing robotic devices. History, science, and human drama all in one beautiful coffee table worthy book!