This is Steven!
I guess there is not much need of an introduction for Steven. Just in case, Steven Pressfield is a best-selling author who started its career with The Legend of Bagger Vance and then started to write historical fiction, usually military themed. Some of his books (like Gates of Fire and Tides of War) have achieved cult status among military people, and they are even used as teaching material in some military schools.
This is Leo!
For those of you who don’t know, Leo Babauta is the creator of Zen Habits, a blog on simplicity, productivity and enjoying life named one of the top 25 blogs by Time magazine. He is also the writer of the Amazon best-seller book on productivity The Power of Less (affiliate link) and the un-copyrighted book Zen to Done (meaning you can find it for free somewhere else, this is an affiliate link for purchasing it).