Getting Things Done by David Allen: Book Notes

TL;DR

• GTD’s core move is real: get every open loop out of your head and into a trusted system, then decide the very next physical action for each one.
• The best science behind it is not the folk story it tells. Plan-making frees working memory; the «unfinished tasks nag your memory» claim mostly does not replicate.
• The whole system has never been tested in a controlled trial, the weekly review is the step almost everyone skips, and «contexts» aged badly once one phone did everything.
• Cal Newport’s objection stands: GTD makes you efficient at shallow tasks and says nothing about doing work that matters.
• Verdict: read our notes instead. Keep capture, next-actions, and the two-minute rule. Skip the rest of the machinery.

Verdict

Getting Things Done is a book with three genuinely useful ideas wrapped in a system that asks more maintenance than most people will ever give it. The capture habit and the next-action habit are worth internalizing for life. The elaborate lists, contexts, and rituals are optional, and the theory underneath is weaker than the confident prose suggests.

You do not need to buy it to run the useful parts. Our rating: «Read our notes instead». Take capture, the next-action rule, and the two-minute rule; leave the folders. For how this fits the wider shelf, see our book notes.

The big idea

Allen’s premise is that your mind is a bad office. It keeps reminding you of things at the wrong time and cannot actually store commitments, only nag you about them. Every unresolved commitment is an «open loop» that drains attention until you close it or park it somewhere you trust.

The fix is to move all of it out of your head into an external system, then decide, for each item, the single next physical action. Do that consistently and Allen promises a state he calls «mind like water»: a mind that reacts to input proportionally, then returns to calm.

Key ideas

• Capture everything. Collect every commitment, idea, and «should» into inboxes you trust and empty regularly. The point is not organization yet, only getting it out of your head so nothing lives solely in memory.
• Clarify before you file. Process each captured item with one question: is it actionable? If not, it is trash, reference, or «someday». If yes, define the concrete next action, not a vague project name.
• The two-minute rule. If an item takes under two minutes, do it immediately instead of tracking it. Filing and re-reading a trivial task costs more than doing it.
• Organize by next-action and context. Sort actions into lists you can act on: calls, computer, errands, waiting-for. In 2001 that meant you did phone tasks when you had a phone.
• Reflect with a weekly review. Once a week, empty every inbox, update every list, and check projects against reality. Allen is explicit that the system collapses without this step.
• Engage by choosing well. In the moment, pick what to do by context, time available, energy, and priority, rather than by whatever is loudest.
• Aim for «mind like water». The goal is not more output. It is the calm of knowing nothing is slipping, so you can give full attention to the thing in front of you.

What holds up

Externalizing open loops does reduce cognitive load, and there is a clean experiment for it. Masicampo and Baumeister found that unfulfilled goals interfere with tasks that require executive function, and that simply making a plan for the unmet goal removed the interference, freeing working memory as if the task were done (Journal of Experimental Social Psychology, 2011; Journal of Personality and Social Psychology, 2011). Capture plus next-action is exactly plan-making. That is the strongest thing GTD has going for it.

The next-action rule is also sound behavior design. «Draft the report» is a project and a source of dread; «open a blank doc and write the first heading» is a physical act with almost no activation energy. Decomposing commitments into the smallest concrete move is the same lever that works on procrastination, which we cover in our notes on Pychyl. The two-minute rule survives for the same reason: it deletes the overhead of tracking trivial work.

What doesn’t

There is no trial of GTD as a system. After two decades, GTD has no controlled study showing that the full method beats a simple to-do list. It is field-tested consulting wisdom, which is not nothing, but it is not evidence, and the book presents its claims with more certainty than that warrants.

The folk theory is shaky. GTD leans on the idea that unfinished tasks stick in memory and nag you, the popular reading of the Zeigarnik effect. A 2025 meta-analysis of 38 studies found no reliable memory advantage for interrupted tasks, a recall ratio of 0.99 and an effect size of dz = 0.15 (Ghibellini and Meier, Humanities and Social Sciences Communications, 2025). Your mind does not hoard unfinished tasks the way Allen implies. What is real is the executive-function interference from open goals, and plan-making relieves it. The mechanism works; the story attached to it is mostly wrong.

The weekly review is the weak joint. Allen concedes the system fails without the weekly review, and the weekly review is precisely the high-friction hour most people quietly abandon. A method whose integrity depends on the step with the worst adherence is fragile by design. Once the review lapses, your «trusted system» becomes a graveyard of stale lists that you stop trusting, which defeats the entire purpose.

Contexts aged out. The @calls / @computer / @errands split assumed your tools were scattered. One smartphone collapsed most of those contexts into a single object you carry everywhere, so sorting by tool now sorts almost nothing.

It can become productivity theater. The system is engrossing to build and tune, and tending it feels like progress. Cal Newport’s critique lands here: GTD treats buying soap and solving a hard research problem as equivalent «next actions», but real value comes from deep work that cannot be reduced to a checklist (Study Hacks, 2012). GTD makes you reliable at shallow tasks and silent on what deserves your attention. For that missing half, see how it stacks up against focus-first methods in our guide to choosing a time system and our piece on reaching flow.

Why the tools outlive the theory

Capture works because writing a commitment down is a minimal plan, and Masicampo and Baumeister showed a plan is enough to release the mental load. Next-actions work because they lower activation energy to near zero, the actual bottleneck in getting started. The two-minute rule works because it removes tracking overhead. None of these depend on lists, folders, or the word «context». You can run all three on a single notes app or a piece of paper.

Who should actually read it

Read the full book if you manage a genuinely high volume of small, external commitments, many people, many channels, many handoffs, and you enjoy running a system. GTD was built for that load and handles it well.

Do not read the full book if your problem is focus, not volume. If you have five things that matter and keep avoiding the hard one, GTD will hand you a beautifully organized way to keep avoiding it. Spontaneous, structure-averse people should also be honest: a method that lives or dies by a weekly ritual will fight your temperament, and our guide for spontaneous people is a better fit.

One thing to try

The shift: stop keeping commitments in your head, and stop writing vague ones down. Every open loop leaves your mind as a concrete next physical action, or it does not get recorded at all.

First move: today, open one note and do a five-minute brain dump of everything on your mind. Then rewrite the top three as next actions, each starting with a verb you could do in the next ten minutes.

Get the book

Find «Getting Things Done» on Amazon — as an Amazon Associate, The Boring Work earns from qualifying purchases (disclosure).

The boring bottom line

GTD’s durable contribution is small and real: get it out of your head, name the next action, do the two-minute stuff now. The rest is an elaborate filing system resting on a folk theory that did not hold up, kept alive by a weekly ritual most people skip. Take the three habits and run them anywhere. You will not miss the folders.

Sources

• Allen, D. (2015). Getting Things Done: The Art of Stress-Free Productivity (rev. ed.). Penguin Books. Originally published by Viking, 2001.
• Masicampo, E. J., and Baumeister, R. F. (2011). Consider It Done: Plan Making Can Eliminate the Cognitive Effects of Unfulfilled Goals. Journal of Personality and Social Psychology, 101(4), 667-683.
• Masicampo, E. J., and Baumeister, R. F. (2011). Unfulfilled goals interfere with tasks that require executive functions. Journal of Experimental Social Psychology, 47(2), 300-311.
• Ghibellini, R., and Meier, B. (2025). Interruption, recall and resumption: a meta-analysis of the Zeigarnik and Ovsiankina effects. Humanities and Social Sciences Communications, 12.
• Newport, C. (2012). Getting (Unremarkable) Things Done: The Problem With David Allen’s Universalism. Study Hacks Blog.
• Zeigarnik, B. (1927). On finished and unfinished tasks. Reprinted in W. D. Ellis (Ed.), A Source Book of Gestalt Psychology (1938). Overview and citation.

The Russian-language predecessor of this article (2016) is preserved in the archive.