03/28/2026
There's no shortage of books telling you to change your habits, transform your life, and become your best self. What's in short supply is books that tell you how, with evidence, not anecdotes.
How to Change, The Science of Getting from Where You Are to Where You Want to Be by Katy Milkman fills that gap. Milkman is a Wharton professor and the co-director of the Behavior Change for Good Initiative, and she's spent her career studying why people struggle to change and what actually works. This book distills decades of research into a practical, accessible guide that's refreshingly honest about the difficulty of change while being genuinely hopeful about the possibility.
Key Lessons:
1. Willpower is overrated. Strategy is everything.
Milkman opens by dismantling the myth that change failures are failures of character. She presents research showing that even people with enormous willpower struggle when their environment isn't aligned with their goals. The question isn't "how do I become more disciplined?" It's "how do I design my circumstances so discipline isn't required?"
2. Identify your obstacle before you choose your solution.
This is the book's core framework. Milkman argues that most people skip the diagnostic phase and jump straight to generic solutions (like "I'll try harder" or "I'll make a resolution"). Instead, she recommends figuring out why you're struggling. Are you impulsive? Prone to procrastination? Easily distracted? Lacking confidence? Different problems require different solutions.
3. Temptation bundling works.
One of Milkman's most cited research findings is the power of temptation bundling: pairing something you should do with something you want to do. She shares the example of students who only allowed themselves to listen to addictive audiobooks while at the gym. The result? They exercised more. The principle is simple: make the behavior you want to encourage more appealing by attaching it to a genuine pleasure.
4. Fresh starts create momentum.
Milkman's research on the "fresh start effect" shows that people are more likely to pursue goals after temporal landmarks: New Year's, birthdays, the start of a season, even Monday mornings. These moments create a psychological separation between your past self and your future self, making change feel more possible. The lesson isn't to wait for January 1, it's to create your own fresh starts intentionally.
5. Commitment devices lock in future behavior.
One of the most effective strategies Milkman discusses is the commitment device: a way of binding yourself to a course of action that makes it harder to backslide. This can be financial (betting you'll hit a goal), social (publicly committing), or structural (removing options). The key is recognizing that your present self can't trust your future self to follow through, so you need to make it easier for future you to do the right thing.
6. Procrastination is often an emotion management problem.
Milkman challenges the assumption that procrastination is about time management. Drawing on research, she argues that procrastination is often about managing negative emotions: we avoid tasks because they make us feel anxious, bored, or inadequate. The solution isn't better scheduling, it's addressing the emotional barrier directly or using strategies (like starting absurdly small) to bypass it.
7. Flexibility matters more than rigidity.
Conventional wisdom says you need rigid consistency to form habits. Milkman presents research showing that flexibility, allowing for slip-ups without abandoning the goal entirely, actually leads to better long-term outcomes. People who view a missed workout as a temporary setback rather than a total failure are more likely to stick with exercise over time.
8. Social influence is a lever you can use intentionally.
We're all shaped by the people around us, but Milkman argues we can harness this influence deliberately. Surrounding yourself with people who model the behavior you want, making commitments to others, or even just observing others who've succeeded can significantly increase your odds of success.
How to Change is one of the most useful books on behavior change to come out in recent years, not because it offers a secret that no one has ever heard, but because it organizes what we know into a framework that actually helps you figure out what to do differently.
Milkman's greatest contribution is shifting the question from "why can't I stick to my goals?" to "what's actually blocking me, and which strategy is best suited to remove that block?" That reframe alone is worth the price of the book.
If you've ever felt like change should be possible but somehow isn't clicking, this book will likely give you both an explanation for why and a path forward. It's rigorous, practical, and refreshingly honest about the challenge while being genuinely optimistic about the possibility.
BOOK: https://amzn.to/4rPfpmR
