+ wishlist The 20% Doctrine: How Tinkering, Goofing Off, and Breaking the Rules at Work Drive Success in Business [9780062003232] Add to Cart The item has been added Author: Ryan Tate The 20% Doctrine: How Tinkering, Goofing Off, and Breaking the Rules at Work Drive Success in Business [9780062003232] Buy More - Save More. Below are the available bulk discount rates for each individual item when you purchase a certain amount Quantity Price Savings 25 - 99 41% 100 - 249 44% 250 - 499 47% 500 - 999 49% 1000+ 51% List Price As Low as $25.99 Format: Hardcover