I thought I’d read this whole novel, but I decided to reread it because my son is reading it in his English class next quarter. As it turns out, I only read the section where he talks about space law and had no memory of the rest of the book. Pretty sure I hadn’t read it!  Anyhow, it’s easy to see why this book was so very popular and immediately picked up for a film. Some of the language did not age well, but overall Mark remains a sympathetic character and funny. I wish that his mental health was explored a little bit more spending a year and a half without seeing another human? That would be extremely difficult.