My top 10 non-fiction books

So I am finally getting around to sharing my list of top non-fiction books that have most influenced me. Many of these were books I read back in high-school, but had significant influence in my spiritual and emotional growth as a young adult. A few are from later on. It is really is hard to choose my top ten because I have read so many good books over the years, but I am going to force myself to choose.