The Diary of a CEO Review: 33 Laws for Money, Habits, and Consistent Health

Some books give you tactics. Others give you a way to think. The Diary of a CEO: The 33 Laws of Business and Life by Steven Bartlett (published 2023) sits in the second camp: a punchy set of principles pulled from psychology, behavioral science, and thousands of long-form conversations with high performers.

Even if you never plan to run a company, the “CEO” lens is useful: you’re still the CEO of your calendar, your energy, your habits, and your money. This review focuses on the laws that translate best into daily decisions—especially around work, self-discipline, and the kind of consistency that also improves diet and training.

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What the book is about (in plain English)

Bartlett frames the book as “laws” that help you build a better life by treating your personal growth like a serious operating system. The themes repeat in different forms:

  • Protect your attention like it’s money (because it turns into money—and health—over time).
  • Design your environment so the right behavior is the default behavior.
  • Invest in the skills that compound: communication, relationships, emotional regulation, and consistency.
  • Stay honest about trade-offs—every “yes” is a “no” to something else.

It’s structured to be skim-friendly. You can read a “law,” take one action, and be done—then come back later without losing the thread.

Who this is for (and who should skip it)

This book is for you if:

  • You like distilled lessons—short chapters, clear takeaways, minimal fluff.
  • You’re building something (a business, a side hustle, a career pivot) and need a steadier mindset.
  • You’re trying to get consistent with training and food and you know the bottleneck is “me vs. me.”

You might skip it if: you want a single deep framework with lots of evidence and citations. This is a “playbook” style book—practical, motivational, and wide-ranging.

4 notable takeaways (paraphrased) you can apply this week

1) Build a life that makes the right choice the easy choice

A lot of people try to solve consistency with willpower. The better lever is environment. If your kitchen is a minefield and your phone is a slot machine, you’re not failing—you’re simply running the wrong system.

Try this:

  • Make the “default snack” something you actually like that also serves your goal (Greek yogurt, protein pudding, fruit + nuts).
  • Put your training shoes where you’ll trip over them in the morning.
  • Turn off non-human notifications. Keep only messaging + calendar.

This is the CEO move: reduce friction for the behaviors that compound, and increase friction for the behaviors that drain you.

2) Treat attention like a balance sheet

Money is obvious—you notice when it’s leaking. Attention leaks are sneakier: you “just check something” and lose 20 minutes, then feel behind, then skip the workout, then order takeaway. It cascades.

Try this 7-day audit: write down the 3 things you do most days that produce real progress (e.g., 45 minutes of deep work, a walk, meal prep). Then ask: What steals from these? Cut or contain the thieves.

3) Become the kind of person who keeps promises to yourself

One of the most practical mindset shifts in CEO-style thinking is identity: if you repeatedly keep small promises to yourself, you stop negotiating with yourself. That creates calm confidence (and fewer “I’ll start Monday” loops).

Try the “two-minute promise”: pick one tiny daily action that is too small to fail—two minutes of stretching, writing one sentence, doing one set of push-ups, logging breakfast. The goal is not fitness. The goal is becoming someone who follows through.

4) Relationships are a performance multiplier (and a stress reducer)

This book repeatedly points to a truth high performers often forget: your output is affected by who you spend time with, who you listen to, and what you tolerate.

Try this: choose one relationship that drains you through drama or constant reactivity. Instead of “fixing” it, define a boundary you can actually hold (time limit, topic limit, response delay). The point isn’t conflict—it’s capacity.

How to use these ideas for money, diet, and exercise (without turning into a robot)

Here’s a simple 3-part operating system you can steal. It doesn’t require motivation; it requires design.

Step 1: Pick one metric for each area

  • Money: “I track spending daily” or “I auto-transfer $X weekly.”
  • Diet: “Protein at breakfast” or “Two vegetables per day.”
  • Training: “3 sessions per week” or “8,000 steps/day.”

Keep them boring. Boring is sustainable.

Step 2: Create a trigger that starts the behavior

  • After I make coffee, I open my budget app for 60 seconds.
  • After I finish lunch, I walk for 10 minutes.
  • After I brush my teeth, I put on workout clothes.

Triggers beat intentions. If the start is automatic, the finish is easier.

Step 3: Review weekly like a CEO

Once a week, ask three questions:

  1. What worked?
  2. What broke?
  3. What will I change for next week?

That’s it. No shame, no drama—just iteration.

My verdict

The Diary of a CEO is a useful “principles library” for people who want to feel more in control—of work, money, and habits. The best parts are the reminders that consistency isn’t a personality trait; it’s a system you build. If you’re stuck in stop-start cycles, this book can give you the reset you need.

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