From Boardroom to Seabed
Same book, three ways to read it. Pick a format, add it to the cart, and check out securely.
Unlike anything I have read in the personal development space.4.8 from 100 readers →
Book One · Memoir
You built something real — a career, a company, a reputation, a family. This is the book about what you build next.
4.8 average from 100 readers · eBook, paperback, hardcover · secure checkout
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Same book, three ways to read it. Pick a format, add it to the cart, and check out securely.
Reinvention, purpose, and the case for your best years being ahead. The eBook is ready now; the print editions are on press.
Printable PDF. The five principles, the six-step blueprint, and the ninety-day plan as prompts you fill in by hand.
Printable PDF, 70 pages. Thirty-six chapter practices, the 30-Day Challenge, the Second-Chapter Self-Audit, the Mentor’s Playbook and the Book Club Guide, rebuilt as pages you fill in by hand.
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“I did not expect to get emotional in the first chapter. I was not prepared for a business and mastery book to reach back into my own childhood.”
Reader review · Read all 100
What is inside
A basement start-up grown to an eight-figure sale. Two retirements that did not hold. A return to deep water in his sixties, and a rating held by fewer than two percent of certified divers.
The memoir carries the whole arc — and underneath it sits a single method: five principles, a six-step blueprint, and a ninety-day plan for people who have already succeeded once and are deciding what the next chapter asks of them.
The five principles of perpetual mastery
About Curt Tomlinson
Curt Tomlinson built his first company out of a basement and grew it into an eight-figure business, sold to Lucent Technologies. He was named an Ernst & Young Entrepreneur of the Year, and was a senior vice president at twenty-three — an age when most people are still deciding what they want to do.
He retired twice. Both times it failed to hold. What he learned is that mastery is not a finish line you cross and then rest behind — it is a practice you keep, or lose, at any age.
So in the decade his peers spent planning leisure, he went the other direction. He became a PADI Master Scuba Diver, a rating held by fewer than two percent of certified divers, and in 2025 he won the PADI Global Master Scuba Diver Challenge. He is married to Ronda, more than forty years now, with three grown children and four grandchildren.
Today he runs Seisan, the consulting firm he founded in 2001, and writes and speaks on the one idea his whole life has argued for: your best chapter is not behind you, and no birthday, diagnosis, or failure has the authority to say otherwise.
Do not wait until you feel ready. Day 76 of the 90 day plan enclosed, comes whether you are ready or not. Choose to be ready.
Curt Tomlinson · From Boardroom to Seabed
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