After two years practicing the approach "Covey" I was always dissatisfied. Admittedly, I had prospects, goals, and things were clear to me and I was organized. But act daily still presented difficulties. Clearly, it lacked a simple, very down to earth, and that all I had to do ends up being done. This is now done, and GTD has simply revolutionized my organization. My filing system has never been so fluid, that I have to do is clearer and can not be many projects and ideas that stagnated for months were suddenly released and were completed in a few days, and without real effort. The method in itself could be summarized in a few pages, but the book is used mainly to its implementation step by step, where cutting, few redundancies, and numerous explanations on all points raised in a very educational. This method is very complementary to Covey. Covey provides keys for general orientations, Allen provides the keys for fficiency in everyday life, and that everything is done. A must read, this possibly revolutionize your organization!