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Books from the Sphere world.
Field notes from founders and operators we admire. Join the waitlist for each release.
Outside The Sandbox.
The dangerous, unregulated space where real innovations are born — by Serge Luncar.
Be first to read it.
Get early access, 20% off the first edition, and an invite to the launch event.
About the book
A raw, unfiltered look behind the startup curtain. Serge maps the space beyond the guardrails — where the interesting bets get placed and the real companies get built.
What you'll learn
- Operate beyond permission and process
- Find leverage in unregulated whitespace
- Turn conviction into a durable advantage
A serial founder writing from the field for the next generation of builders who refuse to color inside the lines.
"The sandbox is comfortable. Everything worth building happens on the other side of the wall."
Waitlist members get 20% off the first edition and an invitation to the virtual launch event.
Burn The Safety Net.
A founder's masterclass in creating your own emergencies to force success — by Sphere co-founder Stefaniya Barabanava.
Be first to read it.
Get early access, 20% off the first edition, and an invite to the launch event.
About the book
Part memoir, part playbook. Stefaniya distills the hard-won frameworks she used to go from clinician to venture-backed founder — and the deliberate emergencies she engineered to make the impossible inevitable.
What you'll learn
- Manufacture urgency without burning out
- Convert conviction into leverage
- Build under pressure, ship past fear
A clinician turned founder rebuilding how healthcare providers get paid. She wrote this book for the next generation of operators who refuse to wait for permission.
"The safety net isn't safety. It's the thing keeping you from the version of yourself you're avoiding."
Waitlist members get 20% off the first edition and an invitation to the virtual launch event.