I forgot to mention that Andy Weir came to my work about a month ago:
He read the first chapter of the Martian. (He warned everyone there was some four letter words

If you've read the book you know how it starts

)
He also went into how he wrote the book.
He tried writing back in the 90's for a few years. Didn't really go anywhere. No agent would pick him up so he went back to work in comp sci.
When blogging got big he started a website so he could write for an audience. In 09 he started writing the Martian and folks on his website would critique the chapters.
Eventually they said, "Hey this is great story. I hate reading it on your website can you publish it as an e-book.
So he put it put out on his site for free.
Then people said, "Hey I hate your site but like your work and I don't know how to load an e-book. Can you just put the book on Amazon?"
He put it on Amazon for the minimum ¢99. More people bought the book then downloaded it for free. Surprisingly once it hit number 1 in sci-fi on Amazon a literary agent called him.
He ended up closing on the book deal within a few days of closing on the movie deal.
He said being at work was surreal.
He'd fix a bug. Get a call and go work on his book deal.
Fix another bug. Get another call and go work on his movie deal.
Anyway he's a funny guy with a touch of Watney in him. You could really tell he was a big space geek who was enjoying the ride of his life.