4 Lessons Nonfiction Writers Can Learn from Matthew McConaughey’s Book ‘Greenlights’ Posted byR. Paulo Delgado June 9, 2021 Leave a comment on 4 Lessons Nonfiction Writers Can Learn from Matthew McConaughey’s Book ‘Greenlights’ An experienced writer himself, McConaughey produced a polished manuscript that all nonfiction writers can take a leaf out of to improve their own writing.