Since it was first published in David Allen's Getting Things Done has become one of the most influential business titles of its era, and the book on personal organisation. 'GTD' has become shorthand for an entire way of approaching the professional and personal tasks everyone faces in life, and has spawned an entire culture of websites, organisational tools, seminars, and offshoots. For this revised and updated edition, David Allen has rewritten the book from start to finish, tweaking his classic text with new tools and technologies, and adding material that will make the book evergreen for the coming decades. Also new is a glossary of GTD terms; The GTD Path of Mastership - a description of what Allen has learned and is now teaching regarding the lifelong craft of integrating these practices, to the end-game of the capability of dealing with anything in life, by getting control and focus; and a section on the cognitive science research that validates GTD principles.