The Commandments
Greatness is not a personality you are born with. It is a set of disciplines you choose, again, on the days you do not feel like it.
Stories for thosewho build productsthat matter
A storytelling guide to product management, told in twenty-four books, an interlude and a psalter for the road. Simpler to understand than you fear. Harder to do well than you hope.
About the Book
Many books teach frameworks. Few teach judgment.
This book almost never happened.
The first note was written three years before the first chapter. Then life got busy. Work demanded more. The note sat quietly in an archive while its author kept telling himself, “I’ll come back to it when things settle down.”
That calm never came.
Somewhere in those three years came a realization that changed everything. Sometimes, the things we leave unfinished are the very things someone else is waiting for.
So he came back and finished it.
This book is not built around frameworks or buzzwords. It's built around people.
You'll follow Tunde, Ada, and Marcus as they navigate the everyday realities of product management, learning from their wins, their mistakes, and the mentor who challenges them to think differently.
If you've ever wished someone would teach product management the way people actually experience it, this book is for you.
Because product management is not just about building products. It's about learning how to make better decisions.
What You'll Take Away
Judgment
The hardest decisions are never good against bad. Anyone can make those. Learn how experienced PMs choose between two goods.
Stories that stay
Twenty-four books of narrative, not bullet points. The principle arrives after the story, because that is how the mind actually keeps it.
A way in
An honest account of the role before the myths reach you, for anyone still deciding whether to cross into product at all.
Execution
Output is how much you make. Outcome is what changes because you made it. Only one of them survives the quarter.
The Commandments
Not rules to obey out of fear. Habits to return to, especially on the days the job feels like fog. Each one opens with a story in the book. Five are below. All ten are inside.
The Old Testament · Book One
The Commandments
I
Fall in love with the problem, not your solution.
A solution you love is a liability. A problem you understand is an asset.II
Do not decide in the customer's absence.
Every decision made in the customer's absence is a bet you did not tell them you placed.IV
Ask why before you build what.
The what is what they asked for. The why is what they actually need. Build the second one.VII
Lead without a crown.
Borrowed power runs out. Earned trust compounds.X
Stay teachable; greatness is a habit, not a graduation.
The moment you graduate from learning is the moment you begin to decline. Stay a student.
Five of ten. The rest are inside.
Book One
Chapters
For working product managers on the long climb from good to great: the disciplines, the hard choices, the craft beneath the title. Six of twelve, below.
Genesis of a Product
In the beginning, there was no idea. There was a problem, felt by many, and no one yet listening.
Exodus from the Feature Factory
They were not lazy. They were not slow. They were busy every single day, and going nowhere, and they could not see the difference.
Judges
The hardest decisions are never good against bad. Anyone can make those. The decisions that break you are good against good.
Kings and Stakeholders
You will spend your career leading people who do not report to you, persuading people who outrank you, and serving people who can overrule you. This is not a flaw in the job. It is the job.
The Covenant with the Customer
Everything in this book was only ever in service of one person: the one you are building for. Lose them, and you lose the meaning of all of it.
The Annunciation
A calling rarely announces itself the way you expect. It arrives in disguise, as a salary, an escape, a title on a slide, and only later, if you stay, does it turn and show you its real face.
The Manger
The palace is where you go to be seen. The manger is where the work gets done. Almost nothing real is ever born in a palace.
The Four Gospels
Four people can watch the same thing happen and tell four true stories about it, no two alike. The product manager is the one who has to read all four.
Parables of the Pivot
The industry will tell you your old career is a debt to pay off before you can begin. It is lying. That old career is the one thing you bring that the people who started here will never have.
Pentecost
A thing built in a quiet room is not real until the morning it goes out into the noise, in a language strangers can understand, and you learn whether anyone was waiting for it.
Revelation
In the end the veil lifts, and you see that none of it was ever about the roadmap or the title. It was about the person on the far side of the thing you built, whose ordinary day you made a little less hard.
Six shown here. All twenty-four are inside.
The Crossing
Between the two testaments there is a river. Everyone who works in product crosses it once, and the best of them never quite stop crossing it.
Read a Sample
Front matterTitle
The PM Bible
The Old Testament and the New
A storytelling guide to product management. Simpler to understand than you fear. Harder to do well than you hope.
Twenty-four books, an interlude, and a psalter for the road, for those becoming great, and those just beginning.
Mark Yusuf
Front matterForeword
Foreword
By Anthony Ulwick, creator of Outcome-Driven Innovation
For more than thirty years, I have devoted my career to answering a deceptively simple question: why do so many new products fail? The answer is rarely poor engineering. It is rarely poor execution. More often, failure begins when companies misunderstand the problems customers are trying to solve.
This book repeatedly reminds us to fall in love with the problem rather than the solution, to ask why before deciding what. I particularly appreciate the author's decision to teach through stories rather than endless frameworks. Frameworks alone rarely change behavior. Stories do.
Tony Ulwick, Founder and CEO of Strategyn. Author of What Customers Want and Jobs to Be Done.
4
Front matterBefore we begin
In the Beginning
I wrote the first note for this book. Then I paused the project, and that pause stretched into three years. Life got loud, work got louder, and the note sat in a folder while I promised myself I would come back to it when things calmed down. Things never calmed down.
And somewhere in those three years I learned a small, uncomfortable truth that turned out to be the seed of everything you are about to read: a paused thing, left too long, can start to look a lot like a stagnant one.
That is not only a fact about a book. It is the first thing I want to tell you about product management, because the whole craft turns on it. Nothing you plan matters until you execute it.
8
Old Testament · Book OneThe Commandments
The First Commandment
Fall in love with the problem, not your solution.
Tunde had a feature idea he loved. He had loved it for three months. He had named it, sketched it, defended it in four meetings, and dreamed about the launch. It was, he was certain, brilliant.
Zara, who had shipped more products than Tunde had attended meetings, sat in on one of those meetings, and afterwards, over coffee, asked him a single question. Not is the feature good? She asked: what problem does it solve, and how do you know that problem is real?
Tunde opened his mouth. Closed it. Then it dawned on him. He had fallen in love with the answer before he met the question.
18
A closing psalterSongs of the Crossing
The Psalms
II
When the voice says you are the only fraud in the room,
know that it says the same thing to everyone,
in the same small hour, in the same certain tone.
It is not the truth about you.
It is the toll charged at the gate,
and every person who came in has paid it.
III
Stop waiting to be chosen.
Find one real person with one real problem
and make their day a little less hard.
195
About the Author
Mark has spent his career in product, and three years not writing this book. He started it, paused it, and learned in the pause the thing the whole book turns on: nothing you plan matters until you execute it. Experience is not the years you spent thinking. It is the scars you earned doing.
He wrote The PM Bible the way he believes hard things are best taught. Not by burying you in frameworks and acronyms, but through stories. It is written for the people still standing outside the door, and for the ones already inside it, turning slowly from good towards great.
Testimonials
I have read the framework books. This is the first one that told me what to do on a Tuesday when two good options are on the table and both of them cost something.
We now say never deliver a naked no in stakeholder reviews. One line from Book One changed how the whole team handles pushback.
I switched from design and kept apologising for it. Parables of the Pivot ended that. My old career was the asset, not the debt.
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The PM Bible
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FAQ
Two people. If you are already a product manager wanting to cross the distance from good to great, start with the Old Testament. If you are still wondering whether to cross into product at all, or freshly and terrifyingly just beginning, start with the New Testament. Most readers eventually read both.
Yes. No prior product experience is assumed. Every technical term is explained in plain words the first time it appears, and the Concordance at the back defines each one again in a single honest sentence.
Memory, not reverence. The oldest durable wisdom our species kept was carried in exactly this shape: commandments short enough to remember, parables you could retell over a meal, verses that lodged in the mind. The book borrows the container, not the authority. The playfulness lives entirely in the packaging. The respect for the craft is total.
Yes. This is a living draft. Every revision and expansion lands in your inbox at no extra cost, for as long as the book keeps growing.
Yes. You receive both a PDF and an EPUB, so it reads on Kindle, Apple Books, Kobo, tablets, phones and desktop.
Build better products.Make better decisions.
Twenty-four books, one craft. Start on whichever bank you are standing on, and read your way to the other side.