David Allen provides a manual for stress-free productivity, so you can free your mind from having to remember tasks and to-dos and focus on the task at hand.

David Allen's Getting Things Done lays out a simple, effective productivity system, and has sold over 1.5 million copies.

The book was revised and updated in 2015 to reflect changes in technology since it was originally published in 2001.

Allen's productivity system can be carried out on paper, online, or on your smartphone, so get reading, and get productive.