Essentialism: The Disciplined Pursuit of Less - A Complete Summary Essentialism: The Disciplined Pursuit of Less is a self-help book written by Greg McKeown. The core message of this book is the outline of a minimalist approach to every kind of task or obligation. Rather than focusing on multitasking and on doing "more things at once," the author suggests that we should instead be focusing on doing what is important. Since we live in a world where...