Turning Pro

David Allen - Getting things done Steven Pressfield - The War of Art + Turning Pro Tony Robbins - Awaken the giant within (maybe he's released a better book than that now, but it was impactful personally back in the 90s)

The War of Art by Steven Pressfield. This is the book I've recommended more than any other, and have been thanked by people I've recommended it to disproportionately. He's got a few other books--Do The Work, Turning Pro--that cover similar ground, but The War of Art is the best of them by far.