I’m Joseph Clampitt: physics PhD, Christian author, and entrepreneur.

I’m Joseph Clampitt: physics PhD, Christian author, and entrepreneur.

bhuvnesh jain phd defense

Physics Career

In 2014, I graduated from the University of Pennsylvania with a PhD in Physics. This picture was taken with my PhD advisor, Professor Bhuvnesh Jain, shortly after my thesis defense.

My thesis and postdoctoral work include papers in Weak Gravitational Lensing, Modified Gravity (modifications to General Relativity), Cosmic Voids, and Statistical Analysis of large Telescope Surveys. Learn more about my physics research.

I have spoken extensively at top-tier universities worldwide: from Princeton, Stanford, and UC Berkeley all the way to Japan, Australia, and England. (See my full academic CV.)

20+

Academic Publications

2000+

Academic Citations

2

Books Published

7500+

Books Sold

Recent Projects

Since leaving academia in 2017, I built Stewardship.com to provide Christian coaching and publishing services. Two of my own books have been published under the Stewardship.com imprint: The Presence of Jesus and a new illustrated edition of a timeless classic, The Practice of the Presence of God. My books have over 180 reviews on Amazon, with an average rating of 4.7 stars.

In the Fall of 2025 I launched SpeedGreek.com, a project that had been quietly building for over a year. This new website is geared towards teaching Koine Greek in the fastest and most efficient way. The long term mission of Speed Greek is that more Christians would be able to read the New Testament and other early Christian documents in the original language.

My websites, books, and coaching all have the same goal: helping modern Christians get in touch with the Holy Spirit and with the historical roots of the Christian faith.

Stewardship.com logo
Speed Greek logo
Presence of Jesus
book cover Practice of the Presence of God