David Allen wrote Getting Things Done (GTD), a book on mental freedom and productivity that vastly improved my life and millions of others, including major successful figures. I highly recommend his book’s practices.

I met him ten years ago and he’s mentored me since, especially on writing my book.

In David’s words:

I’m often identified by my description of a relaxed balance of perspective and control, known as “mind like water.” This is not an empty mind (it’s impossible to have nothing on your mind, if you’re conscious); it’s a mind that is operating at a more productive and creative level. GTD helps you achieve and maintain that optimal condition, by using your mental energies to think about things rather than think of them.

From The GTD About page:

Mind Like Water

Your mind is for having ideas, not holding them. That’s why David Allen created Getting Things Done^®. GTD is the work-life management system that has helped countless individuals and organizations bring order to chaos. GTD enables greater performance, capacity, and innovation. It alleviates the feeling of overwhelm—instilling focus, clarity, and confidence.

After decades of in-the-field research and practice of his productivity methods, David wrote the international best-seller Getting Things Done. Published in over 28 languages, TIME magazine heralded it as “the defining self-help business book of its time.” In 2015, he released a new edition of the book, with new insights, updates, and discoveries about the world of Getting Things Done and its many personal and professional applications.

Today, David Allen is considered the leading authority in the fields of organizational and personal productivity. The David Allen Company oversees the certification academy and quality standards for Global Partners offering Getting Things Done courses and coaching around the world.