This book came highly recommended by a colleague. Prior to that, I’ve also heard about this book, I think it was through the Tim Ferris podcast if I’m not mistaken. Not highly unlikely as he is the Achiever with a
One of the easiest and simples tools for planning activities and aligning a team (including the client in the team here if you work "agency side") is to make a roadmap. This creates focus, and puts the work in a context in terms of time needed as well as for example what other external agencies need to pitch in and deliver by when to get things done.
Meetings can be both stressful and the single most effective way to move a project to the next level. The earlier if you have too many meetings in a row without a clear purpose, the latter to work through challenges, that may be perceived as greater than they actually are while being discussed in epic emails back and forth.