The Subtle Art of Saying No

Bruce Tulgan, founder of the management training firm
RainmakerThinking, says that the key to career success isn't only
embracing opportunities; it's also declining projects, tasks, and
requests for help so you create time for the most value-added work.
He explains how to evaluate each ask, determine which you should
prioritize, and deliver either a strategic "yes" or a
well-thought-through no. Tulgan is the author of the HBR article
"Learn When to Say No."