The Cipher Librarian / About Paul
Curiosity, put
to good use.
I’m Paul Clark—a librarian, author, and systems analyst who believes difficult ideas should have an open door.
A librarian first
Making room for
the next question.
I’ve spent around thirty years working in library technology and public service. My work as an Application Systems Analyst at Leon County Public Library in Tallahassee brings together systems, security, and the everyday needs of the people who depend on them.
Libraries have taught me to value access, patient explanation, and the difference between finding an answer and knowing why it deserves our trust.
That is the spirit behind my books, Cipher Museum, and Crypto Lab. I want readers to meet the people behind cryptography, understand the questions they faced, and have a way to try an idea for themselves.
Why “The Cipher Librarian”?
The name brings two parts of my life together: librarianship and the study of hidden messages. It covers a long route—from historical letters and codebreaking to modern protocols, privacy, and post-quantum security.
Some of that journey is best told as a story. Some is best understood by changing an input, running an experiment, and looking carefully at what happens.
Faith & purpose
Knowledge in service
to others.
My Christian faith shapes the way I approach this work. I believe our gifts are meant to serve others, and I want the things I write and build to honor God.
For me, that means caring about the people behind a system, being honest about what the evidence supports, and making useful knowledge accessible.
“Whatever you do, do it all for the glory of God.”1 Corinthians 10:31
What you’ll find here
A growing bookshelf, connections to free learning resources, and an invitation to stay curious. Whether you arrive for the history or the mathematics, I hope you leave with a better question—and somewhere to explore it.
Start with the booksA conversation starts here
Keep the curiosity
going.
Questions about the book? An idea for a library program, a reading group, or a collaboration? I’d be glad to hear from you.
Write to Paul paul@systemslibrarian.dev