"Your head's for having ideas, not for holding them." — David Allen

David Allen (@gtdguy) is one of the world's most influential thinkers on productivity, and his 35 years of experience as a management consultant and executive coach have earned him the titles of "personal productivity guru" by Fast Company, one of America's top five executive coaches by Forbes, and among The American Management Association's top 10 business leaders.

David's bestselling book, the groundbreaking Getting Things Done: The Art of Stress-Free Productivity, has been published in thirty languages, and the "GTD" methodology it describes has become a global phenomenon, being taught by training companies in 60 countries. David, his company, and his partners are dedicated to teaching people how to stay relaxed and productive in our fast-paced world.

This podcast is brought to you by 99designs, the global creative platform that makes it easy for designers and clients to work together to create designs they love. Its creative process has become the go-to solution for businesses, agencies, and individuals, and I have used it for years to help with display advertising and illustrations and to rapid prototype the cover for The Tao of Seneca. Whether your business needs a logo, website design, business card, or anything you can imagine, check out 99designs.

You can work with multiple designers at once to get a bunch of different ideas, or hire the perfect designer for your project based based on their style and industry specialization. It's simple to review concepts and leave feedback so you'll end up with a design that you're happy with. Go to 99designs.com/tim and get $20 off plus a $99 upgrade.

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Past guests on The Tim Ferriss Show include Jerry Seinfeld, Hugh Jackman, Dr. Jane Goodall, LeBron James, Kevin Hart, Doris Kearns Goodwin, Jamie Foxx, Matthew McConaughey, Esther Perel, Elizabeth Gilbert, Terry Crews, Sia, Yuval Noah Harari, Malcolm Gladwell, Madeleine Albright, Cheryl Strayed, Jim Collins, Mary Karr, Maria Popova, Sam Harris, Michael Phelps, Bob Iger, Edward Norton, Arnold Schwarzenegger, Neil Strauss, Ken Burns, Maria Sharapova, Marc Andreessen, Neil Gaiman, Neil de Grasse Tyson, Jocko Willink, <a href="https://