The Power of Habit
- 2012
- Trade paperback, 2014
- paperback
- Random House Trade Paperbacks (Penguin Random House US)
- 9780812981605
AskNex reference artwork. The publisher's cover appears only under an approved rights record.
by Charles Duhigg
Habits as cue-routine-reward loops, with an emphasis on diagnosing the craving before attempting to change the behaviour.
Argues the cause matters more than the design — you cannot engineer around an unmet craving.
AskNex explains and applies the ideas in this book in its own words. Nothing on this page is quoted from the book, and the page does not stand in for it: the argument, the evidence and the voice are the author's, and reading the original remains the deeper path.
The core idea
Habits do not disappear; they are replaced. Keep the cue and the reward, and substitute the routine between them.
The ideas
2 mental models, in the order they build on each other.
- 01
Habit loop
Cue → routine → reward, held together by craving.
- 02
Keystone habit
Some habits reorganise others around them.
What the book argues
AskNex's own paraphrases of the positions this book takes, as they are held in the knowledge graph. Not quotations, and not the whole book.
Habits change by keeping the cue and reward and replacing the routine.
Some habits reorganise other behaviour around them and are worth targeting first.
A habit persists because of the reward it anticipates, not the one it delivers.
Habit formation
Behaviour that persists because it is cued and repeated, not decided.
Environment design
Changing the conditions around a behaviour beats changing intent.
Incentives
Behaviour follows what is rewarded, including where nobody intended it to.
What actually matters
- Identifying the reward you are actually seeking is the hard part.
- Belief, often social, is what carries habit change through stress.
Where it applies
Practical moves the book supports. Each one is a place to start, not a rule.
- Isolate the reward
Experiment with substitutes until the craving is satisfied.
- Find the keystone
Change one habit that drags the others with it.
Questions worth asking
What am I actually being rewarded with here?
What cue precedes the behaviour every time?
Problems this book speaks to
Recurring situations where this book is one of the sources AskNex draws on. Each opens a public orientation page.
What are you trying to figure out right now?
AskNex will answer your situation using the ideas in The Power of Habit alongside every other source that applies — including the ones that argue against it.