"When: The Scientific Secrets of Perfect Timing" by Daniel Pink lays out questions about how timing impacts our decisions and our lives. He provides insight into beginnings, middle, and ends. He considers when is it a good time to begin a project/task/event? Are there better ways to progress towards a goal to make it more achievable and minimize the probability of distraction? Is there a better ending? I personally found the section on diurnal fluctuation enlightening. When is it a good time to perform certain types of tasks? Something I have known and done intuitively for decades but is now backed by scientific research. Pink provides a large cross-reference of support material for the various topics he presents for consideration. [4/5]