Over half of the profit from the handbook's sale will go towards making it, its contents and related materials and information available to those who are otherwise unable to access them. A handbook. Our biggest problem is one we don't know we have. We all have problems we struggle to solve. Sometimes they're personal, like being overweight; sometimes they're bigger, like income inequality. Yet many of them are solvable, having been solved before, so to solve them is a choice. Only by solving problems do we progress, and to progress is to live. When we choose not to solve them, we...