Very good. Technical, but very good read.

Mark Wattney is accidentally left on Mars after he is believed to be dead.
The book is set up as log entries from Mark, and a few from personnel on Earth.
Much of the book is how Mark endeavors to survive and hoping to be rescued. It's detailed on making drinking water, food, oxygen and finding a way to communicate with Earth! Mark's smart ass personality shows through in his log entries. Look boobies ( . )( . ) Yes, he wrote that.
It was a good re-read.