A Business Novel · Reuven Sonntag
The Wall
Honor the wish. Test the forecast.
A business novel about the cost of building the wrong thing, in the lineage of The Goal and The Phoenix Project.
A two-hour read for product managers, founders, and operators, about the invisible difference that decides which company survives.
The Book · Opening
“He was the most liked man in the company, and that was the problem.”
[Opening excerpt from The Wall by Reuven Sonntag goes here.]
From The Wall — Chapter One
What it is
Two companies. The same size. The same day.
Company A
Same headcount.
Same market.
Same quarter.
Company B
Same headcount.
Same market.
Same quarter.
The invisible difference
The Wall, a business novel by Reuven Sonntag, is a story, not a framework — a product management novel you read in an evening.
The book is about two companies the same size on the same day, and the invisible difference that decides which one survives: the cost of building the wrong thing.
A business novel for product managers, founders, and operators — a novel like The Goal and The Phoenix Project, written for the people who actually ship.
A two-hour read. That is the point.
The Method
There is a method at the back, for those who want it.
The Wall by Reuven Sonntag is the story. The appendix is the tool. Get The Forecast Test now — a one-page way to separate what you want from what the world will actually pay for — and I will tell you the moment the book is live.
The tool, a few notes as the book comes together, then word when it is out. Nothing else.
About
Who wrote this
Reuven Sonntag has spent his career in product management, at companies including Huawei, Booking.com, and Zalando, across Latin America, Europe, and Israel.
He holds a master’s in computer science from Imperial College London and trained first as an electrical engineer.
The rooms in this book are ones he has sat in. The Wall is his first novel.