Andy Christiansen
Andy Christiansen has written at least 1 book. Their most popular book is The 40:40 Principle: Your Road Map to Finding Life-Changing Mentors with 1 save with an average rating of -⭐.
Andy Christiansen has written at least 1 book. Their most popular book is The 40:40 Principle: Your Road Map to Finding Life-Changing Mentors with 1 save with an average rating of -⭐.
2010 • 1 Reader